404516879 has 6 divisors (see below), whose sum is σ = 438027336. Its totient is φ = 373400040.

The previous prime is 404516843. The next prime is 404516927. The reversal of 404516879 is 978615404.

It is a de Polignac number, because none of the positive numbers 2^k-404516879 is a prime.

It is a Duffinian number.

It is a zygodrome in base 2.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (404516809) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1196627 + ... + 1196964.

It is an arithmetic number, because the mean of its divisors is an integer number (73004556).

Almost surely, 2^404516879 is an apocalyptic number.

404516879 is a deficient number, since it is larger than the sum of its proper divisors (33510457).

404516879 is a wasteful number, since it uses less digits than its factorization.

404516879 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2393617 (or 2393604 counting only the distinct ones).

The product of its (nonzero) digits is 241920, while the sum is 44.

The square root of 404516879 is about 20112.6049779734. The cubic root of 404516879 is about 739.5693129347.

The spelling of 404516879 in words is "four hundred four million, five hundred sixteen thousand, eight hundred seventy-nine".