404469855 has 48 divisors (see below), whose sum is σ = 729630720. Its totient is φ = 214951968.

The previous prime is 404469841. The next prime is 404469869. The reversal of 404469855 is 558964404.

It is an interprime number because it is at equal distance from previous prime (404469841) and next prime (404469869).

It is not a de Polignac number, because 404469855 - 2⁵ = 404469823 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 404469855.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 562186 + ... + 562904.

It is an arithmetic number, because the mean of its divisors is an integer number (15200640).

Almost surely, 2^404469855 is an apocalyptic number.

404469855 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

404469855 is a deficient number, since it is larger than the sum of its proper divisors (325160865).

404469855 is an equidigital number, since it uses as much as digits as its factorization.

404469855 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1202 (or 1190 counting only the distinct ones).

The product of its (nonzero) digits is 691200, while the sum is 45.

The square root of 404469855 is about 20111.4359258607. The cubic root of 404469855 is about 739.5406541758.

The spelling of 404469855 in words is "four hundred four million, four hundred sixty-nine thousand, eight hundred fifty-five".