16499994 has 16 divisors (see below), whose sum is σ = 37714368. Its totient is φ = 4714272.

The previous prime is 16499963. The next prime is 16500007. The reversal of 16499994 is 49999461.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 196387 + ... + 196470.

It is an arithmetic number, because the mean of its divisors is an integer number (2357148).

Almost surely, 2^16499994 is an apocalyptic number.

16499994 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

16499994 is an abundant number, since it is smaller than the sum of its proper divisors (21214374).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

16499994 is a wasteful number, since it uses less digits than its factorization.

16499994 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 392869.

The product of its digits is 629856, while the sum is 51.

The square root of 16499994 is about 4062.0184637690. The cubic root of 16499994 is about 254.5821376245.

The spelling of 16499994 in words is "sixteen million, four hundred ninety-nine thousand, nine hundred ninety-four".