404779798 has 8 divisors (see below), whose sum is σ = 621978840. Its totient is φ = 197453520.

The previous prime is 404779759. The next prime is 404779847. The reversal of 404779798 is 897977404.

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

It is a congruent 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, 2468088 + ... + 2468251.

It is an arithmetic number, because the mean of its divisors is an integer number (77747355).

Almost surely, 2^404779798 is an apocalyptic number.

404779798 is a deficient number, since it is larger than the sum of its proper divisors (217199042).

404779798 is a wasteful number, since it uses less digits than its factorization.

404779798 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4936382.

The product of its (nonzero) digits is 3556224, while the sum is 55.

The square root of 404779798 is about 20119.1400909681. The cubic root of 404779798 is about 739.7295079080.

It can be divided in two parts, 4047 and 79798, that added together give a triangular number (83845 = T₄₀₉).

The spelling of 404779798 in words is "four hundred four million, seven hundred seventy-nine thousand, seven hundred ninety-eight".