404879394 has 8 divisors (see below), whose sum is σ = 809758800. Its totient is φ = 134959796.

The previous prime is 404879381. The next prime is 404879441. The reversal of 404879394 is 493978404.

It is a sphenic number, since it is the product of 3 distinct primes.

404879394 is an admirable number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 33739944 + ... + 33739955.

It is an arithmetic number, because the mean of its divisors is an integer number (101219850).

Almost surely, 2^404879394 is an apocalyptic number.

404879394 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

404879394 is a wasteful number, since it uses less digits than its factorization.

404879394 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67479904.

The product of its (nonzero) digits is 870912, while the sum is 48.

The square root of 404879394 is about 20121.6150942214. The cubic root of 404879394 is about 739.7901730390.

The spelling of 404879394 in words is "four hundred four million, eight hundred seventy-nine thousand, three hundred ninety-four".