18246572 has 12 divisors (see below), whose sum is σ = 31975440. Its totient is φ = 9110736.

The previous prime is 18246563. The next prime is 18246581. The reversal of 18246572 is 27564281.

It is an interprime number because it is at equal distance from previous prime (18246563) and next prime (18246581).

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, 638 + ... + 6074.

It is an arithmetic number, because the mean of its divisors is an integer number (2664620).

Almost surely, 2^18246572 is an apocalyptic number.

It is an amenable number.

18246572 is a deficient number, since it is larger than the sum of its proper divisors (13728868).

18246572 is a wasteful number, since it uses less digits than its factorization.

18246572 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6280 (or 6278 counting only the distinct ones).

The product of its digits is 26880, while the sum is 35.

The square root of 18246572 is about 4271.6006367637. The cubic root of 18246572 is about 263.2653858055.

The spelling of 18246572 in words is "eighteen million, two hundred forty-six thousand, five hundred seventy-two".