212324442 has 64 divisors (see below), whose sum is σ = 474660864. Its totient is φ = 62778240.

The previous prime is 212324419. The next prime is 212324459. The reversal of 212324442 is 244423212.

212324442 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×212324442² = 90163337341222728, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 611713 + ... + 612059.

It is an arithmetic number, because the mean of its divisors is an integer number (7416576).

Almost surely, 2^212324442 is an apocalyptic number.

212324442 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 212324442, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (237330432).

212324442 is an abundant number, since it is smaller than the sum of its proper divisors (262336422).

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

212324442 is a wasteful number, since it uses less digits than its factorization.

212324442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 563.

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

The square root of 212324442 is about 14571.3569031851. The cubic root of 212324442 is about 596.5772169449.

Adding to 212324442 its reverse (244423212), we get a palindrome (456747654).

It can be divided in two parts, 2123 and 24442, that added together give a triangular number (26565 = T₂₃₀).

The spelling of 212324442 in words is "two hundred twelve million, three hundred twenty-four thousand, four hundred forty-two".