928840 has 32 divisors (see below), whose sum is σ = 2280960. Its totient is φ = 337600.

The previous prime is 928819. The next prime is 928849. The reversal of 928840 is 48829.

It is not an unprimeable number, because it can be changed into a prime (928849) 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, 616 + ... + 1495.

It is an arithmetic number, because the mean of its divisors is an integer number (71280).

2⁹²⁸⁸⁴⁰ is an apocalyptic number.

It is an amenable number.

928840 is an abundant number, since it is smaller than the sum of its proper divisors (1352120).

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

928840 is a wasteful number, since it uses less digits than its factorization.

928840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2133 (or 2129 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 31.

The square root of 928840 is about 963.7634564560. The cubic root of 928840 is about 97.5694005123.

It can be divided in two parts, 9 and 28840, that multiplied together give a triangular number (259560 = T₇₂₀).

The spelling of 928840 in words is "nine hundred twenty-eight thousand, eight hundred forty".