16900490 has 16 divisors (see below), whose sum is σ = 31243752. Its totient is φ = 6577344.

The previous prime is 16900483. The next prime is 16900493. The reversal of 16900490 is 9400961.

It can be written as a sum of positive squares in 4 ways, for example, as 16900321 + 169 = 4111^2 + 13^2 .

It is not an unprimeable number, because it can be changed into a prime (16900493) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 22469 + ... + 23208.

Almost surely, 2^16900490 is an apocalyptic number.

16900490 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

16900490 is a deficient number, since it is larger than the sum of its proper divisors (14343262).

16900490 is a wasteful number, since it uses less digits than its factorization.

16900490 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45721.

The product of its (nonzero) digits is 1944, while the sum is 29.

The square root of 16900490 is about 4111.0205545582. The cubic root of 16900490 is about 256.6254745461.

The spelling of 16900490 in words is "sixteen million, nine hundred thousand, four hundred ninety".