18064554 has 32 divisors (see below), whose sum is σ = 38261760. Its totient is φ = 5670000.

The previous prime is 18064549. The next prime is 18064567. The reversal of 18064554 is 45546081.

It is a super-2 number, since 2×18064554² = 652656222437832, which contains 22 as substring.

It is a Curzon number.

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 15 ways as a sum of consecutive naturals, for example, 23679 + ... + 24429.

It is an arithmetic number, because the mean of its divisors is an integer number (1195680).

Almost surely, 2^18064554 is an apocalyptic number.

18064554 is an abundant number, since it is smaller than the sum of its proper divisors (20197206).

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

18064554 is a wasteful number, since it uses less digits than its factorization.

18064554 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 986.

The product of its (nonzero) digits is 19200, while the sum is 33.

The square root of 18064554 is about 4250.2416401894. The cubic root of 18064554 is about 262.3870607125.

The spelling of 18064554 in words is "eighteen million, sixty-four thousand, five hundred fifty-four".