28037290 has 16 divisors (see below), whose sum is σ = 51641568. Its totient is φ = 10953936.

The previous prime is 28037281. The next prime is 28037323. The reversal of 28037290 is 9273082.

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 7 ways as a sum of consecutive naturals, for example, 32172 + ... + 33031.

It is an arithmetic number, because the mean of its divisors is an integer number (3227598).

Almost surely, 2^28037290 is an apocalyptic number.

28037290 is a deficient number, since it is larger than the sum of its proper divisors (23604278).

28037290 is a wasteful number, since it uses less digits than its factorization.

28037290 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65253.

The product of its (nonzero) digits is 6048, while the sum is 31.

The square root of 28037290 is about 5295.0250235480. The cubic root of 28037290 is about 303.7936402494.

The spelling of 28037290 in words is "twenty-eight million, thirty-seven thousand, two hundred ninety".