18972054 has 12 divisors (see below), whose sum is σ = 41106156. Its totient is φ = 6324012.

The previous prime is 18972047. The next prime is 18972071. The reversal of 18972054 is 45027981.

18972054 is nontrivially palindromic in base 12.

It is a congruent number.

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 5 ways as a sum of consecutive naturals, for example, 526984 + ... + 527019.

It is an arithmetic number, because the mean of its divisors is an integer number (3425513).

Almost surely, 2^18972054 is an apocalyptic number.

18972054 is an abundant number, since it is smaller than the sum of its proper divisors (22134102).

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

18972054 is a wasteful number, since it uses less digits than its factorization.

18972054 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1054011 (or 1054008 counting only the distinct ones).

The product of its (nonzero) digits is 20160, while the sum is 36.

The square root of 18972054 is about 4355.6921378812. The cubic root of 18972054 is about 266.7092740947.

The spelling of 18972054 in words is "eighteen million, nine hundred seventy-two thousand, fifty-four".