16880890 has 16 divisors (see below), whose sum is σ = 32723208. Its totient is φ = 6232896.

The previous prime is 16880887. The next prime is 16880891. The reversal of 16880890 is 9808861.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 4888521 + 11992369 = 2211^2 + 3463^2 .

It is not an unprimeable number, because it can be changed into a prime (16880891) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 64797 + ... + 65056.

Almost surely, 2^16880890 is an apocalyptic number.

16880890 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

16880890 is a deficient number, since it is larger than the sum of its proper divisors (15842318).

16880890 is a wasteful number, since it uses less digits than its factorization.

16880890 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 129873.

The product of its (nonzero) digits is 27648, while the sum is 40.

The square root of 16880890 is about 4108.6360267125. The cubic root of 16880890 is about 256.5262307771.

The spelling of 16880890 in words is "sixteen million, eight hundred eighty thousand, eight hundred ninety".