18572073 has 16 divisors (see below), whose sum is σ = 26812800. Its totient is φ = 11366784.

The previous prime is 18572011. The next prime is 18572077. The reversal of 18572073 is 37027581.

It is not a de Polignac number, because 18572073 - 2⁹ = 18571561 is a prime.

It is not an unprimeable number, because it can be changed into a prime (18572077) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6565 + ... + 8957.

It is an arithmetic number, because the mean of its divisors is an integer number (1675800).

Almost surely, 2^18572073 is an apocalyptic number.

18572073 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

18572073 is a deficient number, since it is larger than the sum of its proper divisors (8240727).

18572073 is a wasteful number, since it uses less digits than its factorization.

18572073 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2608.

The product of its (nonzero) digits is 11760, while the sum is 33.

The square root of 18572073 is about 4309.5328053050. The cubic root of 18572073 is about 264.8216338586.

The spelling of 18572073 in words is "eighteen million, five hundred seventy-two thousand, seventy-three".