404016879 has 16 divisors (see below), whose sum is σ = 618105600. Its totient is φ = 229944000.

The previous prime is 404016869. The next prime is 404016887. The reversal of 404016879 is 978610404.

It is a happy number.

It is not a de Polignac number, because 404016879 - 2¹² = 404012783 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (404016839) 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, 33054 + ... + 43595.

It is an arithmetic number, because the mean of its divisors is an integer number (38631600).

Almost surely, 2^404016879 is an apocalyptic number.

404016879 is a deficient number, since it is larger than the sum of its proper divisors (214088721).

404016879 is a wasteful number, since it uses less digits than its factorization.

404016879 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 76910.

The product of its (nonzero) digits is 48384, while the sum is 39.

The square root of 404016879 is about 20100.1711186746. The cubic root of 404016879 is about 739.2644743013.

The spelling of 404016879 in words is "four hundred four million, sixteen thousand, eight hundred seventy-nine".