402406592 has 56 divisors (see below), whose sum is σ = 966301344. Its totient is φ = 162312192.

The previous prime is 402406591. The next prime is 402406601. The reversal of 402406592 is 295604204.

It is a tau number, because it is divible by the number of its divisors (56).

It is a Harshad number since it is a multiple of its sum of digits (32).

It is not an unprimeable number, because it can be changed into a prime (402406591) 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, 18803 + ... + 34034.

Almost surely, 2^402406592 is an apocalyptic number.

It is an amenable number.

402406592 is an abundant number, since it is smaller than the sum of its proper divisors (563894752).

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

402406592 is a wasteful number, since it uses less digits than its factorization.

402406592 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52873 (or 52863 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 32.

The square root of 402406592 is about 20060.0745761326. The cubic root of 402406592 is about 738.2810062783.

The spelling of 402406592 in words is "four hundred two million, four hundred six thousand, five hundred ninety-two".