16745868 has 18 divisors (see below), whose sum is σ = 42329924. Its totient is φ = 5581944.

The previous prime is 16745819. The next prime is 16745879. The reversal of 16745868 is 86854761.

It is a happy number.

16745868 is a `hidden beast` number, since 1 + 67 + 4 + 586 + 8 = 666.

It is a tau number, because it is divible by the number of its divisors (18).

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, 232546 + ... + 232617.

Almost surely, 2^16745868 is an apocalyptic number.

16745868 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

16745868 is an abundant number, since it is smaller than the sum of its proper divisors (25584056).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

16745868 is a wasteful number, since it uses less digits than its factorization.

16745868 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 465173 (or 465168 counting only the distinct ones).

The product of its digits is 322560, while the sum is 45.

The square root of 16745868 is about 4092.1715506562. The cubic root of 16745868 is about 255.8404564172.

The spelling of 16745868 in words is "sixteen million, seven hundred forty-five thousand, eight hundred sixty-eight".