402132432 has 40 divisors (see below), whose sum is σ = 1118754784. Its totient is φ = 123732864.

The previous prime is 402132413. The next prime is 402132439. The reversal of 402132432 is 234231204.

It is a junction number, because it is equal to n+sod(n) for n = 402132399 and 402132408.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (402132439) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 321598 + ... + 322845.

Almost surely, 2^402132432 is an apocalyptic number.

It is an amenable number.

402132432 is an abundant number, since it is smaller than the sum of its proper divisors (716622352).

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

402132432 is a wasteful number, since it uses less digits than its factorization.

402132432 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 644467 (or 644461 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 21.

The square root of 402132432 is about 20053.2399377258. The cubic root of 402132432 is about 738.1133043330.

Adding to 402132432 its reverse (234231204), we get a palindrome (636363636).

The spelling of 402132432 in words is "four hundred two million, one hundred thirty-two thousand, four hundred thirty-two".