18575028 has 48 divisors (see below), whose sum is σ = 48404160. Its totient is φ = 6160032.

The previous prime is 18575003. The next prime is 18575041. The reversal of 18575028 is 82057581.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 18574983 and 18575001.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 31351 + ... + 31937.

It is an arithmetic number, because the mean of its divisors is an integer number (1008420).

Almost surely, 2^18575028 is an apocalyptic number.

18575028 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

18575028 is an abundant number, since it is smaller than the sum of its proper divisors (29829132).

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

18575028 is a wasteful number, since it uses less digits than its factorization.

18575028 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 893 (or 885 counting only the distinct ones).

The product of its (nonzero) digits is 22400, while the sum is 36.

The square root of 18575028 is about 4309.8756362568. The cubic root of 18575028 is about 264.8356783584.

The spelling of 18575028 in words is "eighteen million, five hundred seventy-five thousand, twenty-eight".