40406057880 has 32 divisors (see below), whose sum is σ = 121218174000. Its totient is φ = 10774948736.

The previous prime is 40406057869. The next prime is 40406057917. The reversal of 40406057880 is 8875060404.

It is a congruent number.

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, 168358455 + ... + 168358694.

Almost surely, 2^40406057880 is an apocalyptic number.

40406057880 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

40406057880 is an abundant number, since it is smaller than the sum of its proper divisors (80812116120).

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

40406057880 is a wasteful number, since it uses less digits than its factorization.

40406057880 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 336717163 (or 336717159 counting only the distinct ones).

The product of its (nonzero) digits is 215040, while the sum is 42.

The spelling of 40406057880 in words is "forty billion, four hundred six million, fifty-seven thousand, eight hundred eighty".