212444232 has 256 divisors, whose sum is σ = 735436800. Its totient is φ = 49351680.

The previous prime is 212444231. The next prime is 212444233. The reversal of 212444232 is 232444212.

It is an interprime number because it is at equal distance from previous prime (212444231) and next prime (212444233).

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a nude number because it is divisible by every one of its digits.

It is not an unprimeable number, because it can be changed into a prime (212444231) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 888769 + ... + 889007.

It is an arithmetic number, because the mean of its divisors is an integer number (2872800).

Almost surely, 2^212444232 is an apocalyptic number.

212444232 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 212444232, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (367718400).

212444232 is an abundant number, since it is smaller than the sum of its proper divisors (522992568).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

212444232 is a wasteful number, since it uses less digits than its factorization.

212444232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 316 (or 312 counting only the distinct ones).

The product of its digits is 3072, while the sum is 24.

The square root of 212444232 is about 14575.4667849781. The cubic root of 212444232 is about 596.6893889096.

Adding to 212444232 its reverse (232444212), we get a palindrome (444888444).

It can be divided in two parts, 212 and 444232, that added together give a palindrome (444444).

The spelling of 212444232 in words is "two hundred twelve million, four hundred forty-four thousand, two hundred thirty-two".