16039404 has 24 divisors (see below), whose sum is σ = 41583920. Its totient is φ = 5346432.

The previous prime is 16039399. The next prime is 16039411. The reversal of 16039404 is 40493061.

It is a hoax number, since the sum of its digits (27) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (27).

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, 74149 + ... + 74364.

Almost surely, 2^16039404 is an apocalyptic number.

It is an amenable number.

16039404 is an abundant number, since it is smaller than the sum of its proper divisors (25544516).

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

16039404 is a wasteful number, since it uses less digits than its factorization.

16039404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 148526 (or 148518 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 27.

The square root of 16039404 is about 4004.9224711597. The cubic root of 16039404 is about 252.1908984354.

The spelling of 16039404 in words is "sixteen million, thirty-nine thousand, four hundred four".