404880808040 has 32 divisors (see below), whose sum is σ = 964568985480. Its totient is φ = 152425715712.

The previous prime is 404880807979. The next prime is 404880808051. The reversal of 404880808040 is 40808088404.

It can be written as a sum of positive squares in 4 ways, for example, as 381140777956 + 23740030084 = 617366^2 + 154078^2 .

It is a junction number, because it is equal to n+sod(n) for n = 404880807982 and 404880808000.

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, 297705797 + ... + 297707156.

Almost surely, 2^404880808040 is an apocalyptic number.

404880808040 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

404880808040 is an abundant number, since it is smaller than the sum of its proper divisors (559688177440).

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

404880808040 is a wasteful number, since it uses less digits than its factorization.

404880808040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 595412981 (or 595412977 counting only the distinct ones).

The product of its (nonzero) digits is 262144, while the sum is 44.

The spelling of 404880808040 in words is "four hundred four billion, eight hundred eighty million, eight hundred eight thousand, forty".