18946712 has 16 divisors (see below), whose sum is σ = 36012840. Its totient is φ = 9343296.

The previous prime is 18946693. The next prime is 18946723. The reversal of 18946712 is 21764981.

It is a super-2 number, since 2×18946712² = 717955791221888, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15638 + ... + 16805.

Almost surely, 2^18946712 is an apocalyptic number.

It is an amenable number.

18946712 is a deficient number, since it is larger than the sum of its proper divisors (17066128).

18946712 is a wasteful number, since it uses less digits than its factorization.

18946712 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32522 (or 32518 counting only the distinct ones).

The product of its digits is 24192, while the sum is 38.

The square root of 18946712 is about 4352.7820988421. The cubic root of 18946712 is about 266.5904685068.

The spelling of 18946712 in words is "eighteen million, nine hundred forty-six thousand, seven hundred twelve".