404079819 has 16 divisors (see below), whose sum is σ = 632964864. Its totient is φ = 226058400.

The previous prime is 404079803. The next prime is 404079853. The reversal of 404079819 is 918970404.

It is not a de Polignac number, because 404079819 - 2⁴ = 404079803 is a prime.

It is a super-2 number, since 2×404079819² = 326561000246145522, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (404079419) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 470527 + ... + 471384.

It is an arithmetic number, because the mean of its divisors is an integer number (39560304).

Almost surely, 2^404079819 is an apocalyptic number.

404079819 is a deficient number, since it is larger than the sum of its proper divisors (228885045).

404079819 is a wasteful number, since it uses less digits than its factorization.

404079819 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 941938.

The product of its (nonzero) digits is 72576, while the sum is 42.

The square root of 404079819 is about 20101.7367160154. The cubic root of 404079819 is about 739.3028612207.

The spelling of 404079819 in words is "four hundred four million, seventy-nine thousand, eight hundred nineteen".