409108140 has 72 divisors (see below), whose sum is σ = 1418245920. Its totient is φ = 93510144.

The previous prime is 409108129. The next prime is 409108207. The reversal of 409108140 is 41801904.

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, 161085 + ... + 163604.

It is an arithmetic number, because the mean of its divisors is an integer number (19697860).

Almost surely, 2^409108140 is an apocalyptic number.

It is an amenable number.

409108140 is an abundant number, since it is smaller than the sum of its proper divisors (1009137780).

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

409108140 is a wasteful number, since it uses less digits than its factorization.

409108140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 324711 (or 324706 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 27.

The square root of 409108140 is about 20226.4218288851. The cubic root of 409108140 is about 742.3568271371.

The spelling of 409108140 in words is "four hundred nine million, one hundred eight thousand, one hundred forty".