18057572 has 48 divisors (see below), whose sum is σ = 35505792. Its totient is φ = 7983360.

The previous prime is 18057551. The next prime is 18057631. The reversal of 18057572 is 27575081.

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, 247328 + ... + 247400.

It is an arithmetic number, because the mean of its divisors is an integer number (739704).

Almost surely, 2^18057572 is an apocalyptic number.

It is an amenable number.

18057572 is a deficient number, since it is larger than the sum of its proper divisors (17448220).

18057572 is a wasteful number, since it uses less digits than its factorization.

18057572 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 228 (or 226 counting only the distinct ones).

The product of its (nonzero) digits is 19600, while the sum is 35.

The square root of 18057572 is about 4249.4201957444. The cubic root of 18057572 is about 262.3532519152.

The spelling of 18057572 in words is "eighteen million, fifty-seven thousand, five hundred seventy-two".