404040074440 has 64 divisors (see below), whose sum is σ = 948760873200. Its totient is φ = 154662100992.

The previous prime is 404040074429. The next prime is 404040074453. The reversal of 404040074440 is 44470040404.

It can be written as a sum of positive squares in 8 ways, for example, as 17994076164 + 386045998276 = 134142^2 + 621326^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1410117 + ... + 1672276.

Almost surely, 2^404040074440 is an apocalyptic number.

404040074440 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

404040074440 is an abundant number, since it is smaller than the sum of its proper divisors (544720798760).

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

404040074440 is a wasteful number, since it uses less digits than its factorization.

404040074440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3082546 (or 3082542 counting only the distinct ones).

The product of its (nonzero) digits is 28672, while the sum is 31.

The spelling of 404040074440 in words is "four hundred four billion, forty million, seventy-four thousand, four hundred forty".