16494970 has 32 divisors (see below), whose sum is σ = 30848400. Its totient is φ = 6345216.

The previous prime is 16494943. The next prime is 16495001. The reversal of 16494970 is 7949461.

It is a happy number.

It can be written as a sum of positive squares in 8 ways, for example, as 15202201 + 1292769 = 3899^2 + 1137^2 .

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

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, 40126 + ... + 40534.

Almost surely, 2^16494970 is an apocalyptic number.

16494970 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

16494970 is a deficient number, since it is larger than the sum of its proper divisors (14353430).

16494970 is a wasteful number, since it uses less digits than its factorization.

16494970 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 562.

The product of its (nonzero) digits is 54432, while the sum is 40.

The square root of 16494970 is about 4061.4000049244. The cubic root of 16494970 is about 254.5562961910.

The spelling of 16494970 in words is "sixteen million, four hundred ninety-four thousand, nine hundred seventy".