404452790988 has 96 divisors (see below), whose sum is σ = 994029926400. Its totient is φ = 127747006464.

The previous prime is 404452790977. The next prime is 404452791047. The reversal of 404452790988 is 889097254404.

It is a super-2 number, since 2×404452790988² (a number of 24 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 12715168 + ... + 12746936.

It is an arithmetic number, because the mean of its divisors is an integer number (10354478400).

Almost surely, 2^404452790988 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 404452790988, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (497014963200).

404452790988 is an abundant number, since it is smaller than the sum of its proper divisors (589577135412).

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

404452790988 is a wasteful number, since it uses less digits than its factorization.

404452790988 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32231 (or 32229 counting only the distinct ones).

The product of its (nonzero) digits is 23224320, while the sum is 60.

The spelling of 404452790988 in words is "four hundred four billion, four hundred fifty-two million, seven hundred ninety thousand, nine hundred eighty-eight".