16890308 has 6 divisors (see below), whose sum is σ = 29558046. Its totient is φ = 8445152.

The previous prime is 16890287. The next prime is 16890311. The reversal of 16890308 is 80309861.

It can be written as a sum of positive squares in only one way, i.e., 15984004 + 906304 = 3998^2 + 952^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2111285 + ... + 2111292.

It is an arithmetic number, because the mean of its divisors is an integer number (4926341).

Almost surely, 2^16890308 is an apocalyptic number.

It is an amenable number.

16890308 is a deficient number, since it is larger than the sum of its proper divisors (12667738).

16890308 is a wasteful number, since it uses less digits than its factorization.

16890308 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4222581 (or 4222579 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 35.

The square root of 16890308 is about 4109.7819893517. The cubic root of 16890308 is about 256.5739280032.

The spelling of 16890308 in words is "sixteen million, eight hundred ninety thousand, three hundred eight".