409488020 has 24 divisors (see below), whose sum is σ = 860899200. Its totient is φ = 163609632.

The previous prime is 409487983. The next prime is 409488031. The reversal of 409488020 is 20884904.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7241 + ... + 29519.

It is an arithmetic number, because the mean of its divisors is an integer number (35870800).

Almost surely, 2^409488020 is an apocalyptic number.

It is an amenable number.

409488020 is an abundant number, since it is smaller than the sum of its proper divisors (451411180).

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

409488020 is a wasteful number, since it uses less digits than its factorization.

409488020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23207 (or 23205 counting only the distinct ones).

The product of its (nonzero) digits is 18432, while the sum is 35.

The square root of 409488020 is about 20235.8103371227. The cubic root of 409488020 is about 742.5865294600.

The spelling of 409488020 in words is "four hundred nine million, four hundred eighty-eight thousand, twenty".