16407939 has 16 divisors (see below), whose sum is σ = 22845600. Its totient is φ = 10461696.

The previous prime is 16407929. The next prime is 16407943. The reversal of 16407939 is 93970461.

It is not a de Polignac number, because 16407939 - 2⁸ = 16407683 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 16407897 and 16407906.

It is not an unprimeable number, because it can be changed into a prime (16407929) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8997 + ... + 10665.

It is an arithmetic number, because the mean of its divisors is an integer number (1427850).

Almost surely, 2^16407939 is an apocalyptic number.

16407939 is a deficient number, since it is larger than the sum of its proper divisors (6437661).

16407939 is a wasteful number, since it uses less digits than its factorization.

16407939 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1814.

The product of its (nonzero) digits is 40824, while the sum is 39.

The square root of 16407939 is about 4050.6714258256. The cubic root of 16407939 is about 254.1078086172.

The spelling of 16407939 in words is "sixteen million, four hundred seven thousand, nine hundred thirty-nine".