16290856 has 8 divisors (see below), whose sum is σ = 30545370. Its totient is φ = 8145424.

The previous prime is 16290839. The next prime is 16290881. The reversal of 16290856 is 65809261.

It can be written as a sum of positive squares in only one way, i.e., 10692900 + 5597956 = 3270^2 + 2366^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1018171 + ... + 1018186.

Almost surely, 2^16290856 is an apocalyptic number.

It is an amenable number.

16290856 is a deficient number, since it is larger than the sum of its proper divisors (14254514).

16290856 is a wasteful number, since it uses less digits than its factorization.

16290856 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2036363 (or 2036359 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 37.

The square root of 16290856 is about 4036.1932560273. The cubic root of 16290856 is about 253.5019483814.

The spelling of 16290856 in words is "sixteen million, two hundred ninety thousand, eight hundred fifty-six".