18472573 has 16 divisors (see below), whose sum is σ = 21600000. Its totient is φ = 15472512.

The previous prime is 18472547. The next prime is 18472589. The reversal of 18472573 is 37527481.

It is a cyclic number.

It is not a de Polignac number, because 18472573 - 2⁹ = 18472061 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18472873) 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, 92728 + ... + 92926.

It is an arithmetic number, because the mean of its divisors is an integer number (1350000).

Almost surely, 2^18472573 is an apocalyptic number.

It is an amenable number.

18472573 is a deficient number, since it is larger than the sum of its proper divisors (3127427).

18472573 is a wasteful number, since it uses less digits than its factorization.

18472573 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 444.

The product of its digits is 47040, while the sum is 37.

The square root of 18472573 is about 4297.9731269518. The cubic root of 18472573 is about 264.3478588982.

The spelling of 18472573 in words is "eighteen million, four hundred seventy-two thousand, five hundred seventy-three".