28375492 has 12 divisors (see below), whose sum is σ = 50471596. Its totient is φ = 13955040.

The previous prime is 28375469. The next prime is 28375513. The reversal of 28375492 is 29457382.

It can be written as a sum of positive squares in 2 ways, for example, as 749956 + 27625536 = 866^2 + 5256^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 57903 + ... + 58390.

Almost surely, 2^28375492 is an apocalyptic number.

It is an amenable number.

28375492 is a deficient number, since it is larger than the sum of its proper divisors (22096104).

28375492 is a wasteful number, since it uses less digits than its factorization.

28375492 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 116358 (or 116356 counting only the distinct ones).

The product of its digits is 120960, while the sum is 40.

The square root of 28375492 is about 5326.8651193737. The cubic root of 28375492 is about 305.0102728780.

The spelling of 28375492 in words is "twenty-eight million, three hundred seventy-five thousand, four hundred ninety-two".