402928 has 10 divisors (see below), whose sum is σ = 780704. Its totient is φ = 201456.

The previous prime is 402923. The next prime is 402943. The reversal of 402928 is 829204.

402928 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (402923) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12576 + ... + 12607.

2⁴⁰²⁹²⁸ is an apocalyptic number.

It is an amenable number.

402928 is a deficient number, since it is larger than the sum of its proper divisors (377776).

402928 is a wasteful number, since it uses less digits than its factorization.

402928 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25191 (or 25185 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 25.

The square root of 402928 is about 634.7660986537. The cubic root of 402928 is about 73.8599738202.

The spelling of 402928 in words is "four hundred two thousand, nine hundred twenty-eight".