210512412 has 144 divisors (see below), whose sum is σ = 609991200. Its totient is φ = 62726400.

The previous prime is 210512387. The next prime is 210512417. The reversal of 210512412 is 214215012.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (210512417) 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 47 ways as a sum of consecutive naturals, for example, 1162962 + ... + 1163142.

It is an arithmetic number, because the mean of its divisors is an integer number (4236050).

Almost surely, 2^210512412 is an apocalyptic number.

210512412 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 210512412, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (304995600).

210512412 is an abundant number, since it is smaller than the sum of its proper divisors (399478788).

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

210512412 is a wasteful number, since it uses less digits than its factorization.

210512412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 305 (or 286 counting only the distinct ones).

The product of its (nonzero) digits is 160, while the sum is 18.

The square root of 210512412 is about 14509.0458680094. The cubic root of 210512412 is about 594.8752529003.

Adding to 210512412 its reverse (214215012), we get a palindrome (424727424).

The spelling of 210512412 in words is "two hundred ten million, five hundred twelve thousand, four hundred twelve".