28258372 has 24 divisors (see below), whose sum is σ = 50621760. Its totient is φ = 13798560.

The previous prime is 28258367. The next prime is 28258387. The reversal of 28258372 is 27385282.

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, 43353 + ... + 43999.

It is an arithmetic number, because the mean of its divisors is an integer number (2109240).

Almost surely, 2^28258372 is an apocalyptic number.

It is an amenable number.

28258372 is a deficient number, since it is larger than the sum of its proper divisors (22363388).

28258372 is a wasteful number, since it uses less digits than its factorization.

28258372 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 891 (or 889 counting only the distinct ones).

The product of its digits is 53760, while the sum is 37.

The square root of 28258372 is about 5315.8604195370. The cubic root of 28258372 is about 304.5900503275.

The spelling of 28258372 in words is "twenty-eight million, two hundred fifty-eight thousand, three hundred seventy-two".