405472118488 has 64 divisors (see below), whose sum is σ = 779242464000. Its totient is φ = 197743835520.

The previous prime is 405472118477. The next prime is 405472118507. The reversal of 405472118488 is 884811274504.

It is a happy number.

It is a super-2 number, since 2×405472118488² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 22270813 + ... + 22289011.

It is an arithmetic number, because the mean of its divisors is an integer number (12175663500).

Almost surely, 2^405472118488 is an apocalyptic number.

It is an amenable number.

405472118488 is a deficient number, since it is larger than the sum of its proper divisors (373770345512).

405472118488 is a wasteful number, since it uses less digits than its factorization.

405472118488 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18680 (or 18676 counting only the distinct ones).

The product of its (nonzero) digits is 2293760, while the sum is 52.

The spelling of 405472118488 in words is "four hundred five billion, four hundred seventy-two million, one hundred eighteen thousand, four hundred eighty-eight".