16945648 has 10 divisors (see below), whose sum is σ = 32832224. Its totient is φ = 8472816.

The previous prime is 16945639. The next prime is 16945661. The reversal of 16945648 is 84654961.

It is a super-2 number, since 2×16945648² = 574309972279808, 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 as a sum of consecutive naturals, namely, 529536 + ... + 529567.

Almost surely, 2^16945648 is an apocalyptic number.

It is an amenable number.

16945648 is a deficient number, since it is larger than the sum of its proper divisors (15886576).

16945648 is a wasteful number, since it uses less digits than its factorization.

16945648 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1059111 (or 1059105 counting only the distinct ones).

The product of its digits is 207360, while the sum is 43.

The square root of 16945648 is about 4116.5092007671. The cubic root of 16945648 is about 256.8538384740.

The spelling of 16945648 in words is "sixteen million, nine hundred forty-five thousand, six hundred forty-eight".