18733964 has 6 divisors (see below), whose sum is σ = 32784444. Its totient is φ = 9366980.

The previous prime is 18733933. The next prime is 18733969. The reversal of 18733964 is 46933781.

It is a super-2 number, since 2×18733964² = 701922814306592, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (18733969) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2341742 + ... + 2341749.

It is an arithmetic number, because the mean of its divisors is an integer number (5464074).

Almost surely, 2^18733964 is an apocalyptic number.

It is an amenable number.

18733964 is a deficient number, since it is larger than the sum of its proper divisors (14050480).

18733964 is a wasteful number, since it uses less digits than its factorization.

18733964 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4683495 (or 4683493 counting only the distinct ones).

The product of its digits is 108864, while the sum is 41.

The square root of 18733964 is about 4328.2749450561. The cubic root of 18733964 is about 265.5888838370.

The spelling of 18733964 in words is "eighteen million, seven hundred thirty-three thousand, nine hundred sixty-four".