404340055320 has 32 divisors (see below), whose sum is σ = 1213020166320. Its totient is φ = 107824014720.

The previous prime is 404340055297. The next prime is 404340055331. The reversal of 404340055320 is 23550043404.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1684750111 + ... + 1684750350.

Almost surely, 2^404340055320 is an apocalyptic number.

404340055320 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

404340055320 is an abundant number, since it is smaller than the sum of its proper divisors (808680111000).

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

404340055320 is a wasteful number, since it uses less digits than its factorization.

404340055320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3369500475 (or 3369500471 counting only the distinct ones).

The product of its (nonzero) digits is 28800, while the sum is 30.

Adding to 404340055320 its reverse (23550043404), we get a palindrome (427890098724).

The spelling of 404340055320 in words is "four hundred four billion, three hundred forty million, fifty-five thousand, three hundred twenty".