16490475 has 18 divisors (see below), whose sum is σ = 29536676. Its totient is φ = 8794800.

The previous prime is 16490443. The next prime is 16490483. The reversal of 16490475 is 57409461.

16490475 is a `hidden beast` number, since 1 + 649 + 0 + 4 + 7 + 5 = 666.

It is not a de Polignac number, because 16490475 - 2⁵ = 16490443 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 36421 + ... + 36870.

Almost surely, 2^16490475 is an apocalyptic number.

16490475 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

16490475 is a deficient number, since it is larger than the sum of its proper divisors (13046201).

16490475 is a wasteful number, since it uses less digits than its factorization.

16490475 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 73307 (or 73299 counting only the distinct ones).

The product of its (nonzero) digits is 30240, while the sum is 36.

The square root of 16490475 is about 4060.8465866122. The cubic root of 16490475 is about 254.5331712726.

The spelling of 16490475 in words is "sixteen million, four hundred ninety thousand, four hundred seventy-five".