18468072 has 48 divisors (see below), whose sum is σ = 57164640. Its totient is φ = 5276448.

The previous prime is 18468059. The next prime is 18468091. The reversal of 18468072 is 27086481.

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

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 17818 + ... + 18825.

It is an arithmetic number, because the mean of its divisors is an integer number (1190930).

Almost surely, 2^18468072 is an apocalyptic number.

18468072 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

18468072 is an abundant number, since it is smaller than the sum of its proper divisors (38696568).

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

18468072 is a wasteful number, since it uses less digits than its factorization.

18468072 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36662 (or 36655 counting only the distinct ones).

The product of its (nonzero) digits is 21504, while the sum is 36.

The square root of 18468072 is about 4297.4494761428. The cubic root of 18468072 is about 264.3263869505.

The spelling of 18468072 in words is "eighteen million, four hundred sixty-eight thousand, seventy-two".