404440634108 has 72 divisors (see below), whose sum is σ = 886836271104. Its totient is φ = 160447240800.

The previous prime is 404440634099. The next prime is 404440634123. The reversal of 404440634108 is 801436044404.

It is a happy number.

It is a super-2 number, since 2×404440634108² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1307288 + ... + 1586783.

It is an arithmetic number, because the mean of its divisors is an integer number (12317170432).

Almost surely, 2^404440634108 is an apocalyptic number.

It is an amenable number.

404440634108 is an abundant number, since it is smaller than the sum of its proper divisors (482395636996).

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

404440634108 is a wasteful number, since it uses less digits than its factorization.

404440634108 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2894143 (or 2894134 counting only the distinct ones).

The product of its (nonzero) digits is 147456, while the sum is 38.

The spelling of 404440634108 in words is "four hundred four billion, four hundred forty million, six hundred thirty-four thousand, one hundred eight".