402134432 has 48 divisors (see below), whose sum is σ = 906837120. Its totient is φ = 171955968.

The previous prime is 402134431. The next prime is 402134441. The reversal of 402134432 is 234431204.

It is a junction number, because it is equal to n+sod(n) for n = 402134398 and 402134407.

It is not an unprimeable number, because it can be changed into a prime (402134431) 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, 112253 + ... + 115779.

It is an arithmetic number, because the mean of its divisors is an integer number (18892440).

Almost surely, 2^402134432 is an apocalyptic number.

It is an amenable number.

402134432 is an abundant number, since it is smaller than the sum of its proper divisors (504702688).

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

402134432 is a wasteful number, since it uses less digits than its factorization.

402134432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4053 (or 4045 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 23.

The square root of 402134432 is about 20053.2898049173. The cubic root of 402134432 is about 738.1145279964.

Adding to 402134432 its reverse (234431204), we get a palindrome (636565636).

The spelling of 402134432 in words is "four hundred two million, one hundred thirty-four thousand, four hundred thirty-two".