18372734 has 12 divisors (see below), whose sum is σ = 29087064. Its totient is φ = 8702532.

The previous prime is 18372727. The next prime is 18372769. The reversal of 18372734 is 43727381.

It is a junction number, because it is equal to n+sod(n) for n = 18372694 and 18372703.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 12002 + ... + 13445.

It is an arithmetic number, because the mean of its divisors is an integer number (2423922).

Almost surely, 2^18372734 is an apocalyptic number.

18372734 is a deficient number, since it is larger than the sum of its proper divisors (10714330).

18372734 is a wasteful number, since it uses less digits than its factorization.

18372734 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25487 (or 25468 counting only the distinct ones).

The product of its digits is 28224, while the sum is 35.

The square root of 18372734 is about 4286.3427301139. The cubic root of 18372734 is about 263.8707566801.

The spelling of 18372734 in words is "eighteen million, three hundred seventy-two thousand, seven hundred thirty-four".