409491460 has 24 divisors (see below), whose sum is σ = 982779840. Its totient is φ = 140397024.

The previous prime is 409491419. The next prime is 409491479. The reversal of 409491460 is 64194904.

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, 1462330 + ... + 1462609.

It is an arithmetic number, because the mean of its divisors is an integer number (40949160).

Almost surely, 2^409491460 is an apocalyptic number.

It is an amenable number.

409491460 is an abundant number, since it is smaller than the sum of its proper divisors (573288380).

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

409491460 is a wasteful number, since it uses less digits than its factorization.

409491460 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2924955 (or 2924953 counting only the distinct ones).

The product of its (nonzero) digits is 31104, while the sum is 37.

The square root of 409491460 is about 20235.8953347758. The cubic root of 409491460 is about 742.5886088782.

The spelling of 409491460 in words is "four hundred nine million, four hundred ninety-one thousand, four hundred sixty".