18364628 has 24 divisors (see below), whose sum is σ = 32798304. Its totient is φ = 8996000.

The previous prime is 18364613. The next prime is 18364631. The reversal of 18364628 is 82646381.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 18364591 and 18364600.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 52751 + ... + 53097.

It is an arithmetic number, because the mean of its divisors is an integer number (1366596).

Almost surely, 2^18364628 is an apocalyptic number.

It is an amenable number.

18364628 is a deficient number, since it is larger than the sum of its proper divisors (14433676).

18364628 is a wasteful number, since it uses less digits than its factorization.

18364628 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 583 (or 581 counting only the distinct ones).

The product of its digits is 55296, while the sum is 38.

The square root of 18364628 is about 4285.3970644504. The cubic root of 18364628 is about 263.8319446195.

The spelling of 18364628 in words is "eighteen million, three hundred sixty-four thousand, six hundred twenty-eight".