402992 has 20 divisors (see below), whose sum is σ = 792360. Its totient is φ = 198528.

The previous prime is 402991. The next prime is 403001. The reversal of 402992 is 299204.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 402992.

It is not an unprimeable number, because it can be changed into a prime (402991) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1283 + ... + 1565.

It is an arithmetic number, because the mean of its divisors is an integer number (39618).

2⁴⁰²⁹⁹² is an apocalyptic number.

It is an amenable number.

402992 is a deficient number, since it is larger than the sum of its proper divisors (389368).

402992 is a wasteful number, since it uses less digits than its factorization.

402992 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 380 (or 374 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 26.

The square root of 402992 is about 634.8165089221. The cubic root of 402992 is about 73.8638841864.

The spelling of 402992 in words is "four hundred two thousand, nine hundred ninety-two".