16039090 has 24 divisors (see below), whose sum is σ = 29849580. Its totient is φ = 6204960.

The previous prime is 16039087. The next prime is 16039123. The reversal of 16039090 is 9093061.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 15992001 + 47089 = 3999^2 + 217^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 8776 + ... + 10444.

Almost surely, 2^16039090 is an apocalyptic number.

16039090 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

16039090 is a deficient number, since it is larger than the sum of its proper divisors (13810490).

16039090 is a wasteful number, since it uses less digits than its factorization.

16039090 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1738 (or 1707 counting only the distinct ones).

The product of its (nonzero) digits is 1458, while the sum is 28.

The square root of 16039090 is about 4004.8832692102. The cubic root of 16039090 is about 252.1892527288.

The spelling of 16039090 in words is "sixteen million, thirty-nine thousand, ninety".