28992264 has 32 divisors (see below), whose sum is σ = 82835520. Its totient is φ = 8283456.

The previous prime is 28992253. The next prime is 28992281. The reversal of 28992264 is 46229982.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 86119 + ... + 86454.

It is an arithmetic number, because the mean of its divisors is an integer number (2588610).

Almost surely, 2^28992264 is an apocalyptic number.

28992264 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

28992264 is an abundant number, since it is smaller than the sum of its proper divisors (53843256).

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

28992264 is a wasteful number, since it uses less digits than its factorization.

28992264 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 172589 (or 172585 counting only the distinct ones).

The product of its digits is 124416, while the sum is 42.

The square root of 28992264 is about 5384.4464896589. The cubic root of 28992264 is about 307.2043612391.

The spelling of 28992264 in words is "twenty-eight million, nine hundred ninety-two thousand, two hundred sixty-four".