212712432 has 40 divisors (see below), whose sum is σ = 581833296. Its totient is φ = 66733056.

The previous prime is 212712413. The next prime is 212712481. The reversal of 212712432 is 234217212.

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

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 129523 + ... + 131154.

Almost surely, 2^212712432 is an apocalyptic number.

It is an amenable number.

212712432 is an abundant number, since it is smaller than the sum of its proper divisors (369120864).

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

212712432 is a wasteful number, since it uses less digits than its factorization.

212712432 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 260705 (or 260699 counting only the distinct ones).

The product of its digits is 1344, while the sum is 24.

The square root of 212712432 is about 14584.6642745042. The cubic root of 212712432 is about 596.9403799511.

Adding to 212712432 its reverse (234217212), we get a palindrome (446929644).

The spelling of 212712432 in words is "two hundred twelve million, seven hundred twelve thousand, four hundred thirty-two".