16804690 has 32 divisors (see below), whose sum is σ = 34712064. Its totient is φ = 5737920.

The previous prime is 16804679. The next prime is 16804729. The reversal of 16804690 is 9640861.

It is a super-2 number, since 2×16804690² = 564795211992200, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 29892 + ... + 30448.

It is an arithmetic number, because the mean of its divisors is an integer number (1084752).

Almost surely, 2^16804690 is an apocalyptic number.

16804690 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

16804690 is an abundant number, since it is smaller than the sum of its proper divisors (17907374).

16804690 is a wasteful number, since it uses less digits than its factorization.

16804690 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1002.

The product of its (nonzero) digits is 10368, while the sum is 34.

The square root of 16804690 is about 4099.3523878779. The cubic root of 16804690 is about 256.1396637812.

The spelling of 16804690 in words is "sixteen million, eight hundred four thousand, six hundred ninety".