408479340 has 48 divisors (see below), whose sum is σ = 1149523200. Its totient is φ = 108377280.

The previous prime is 408479339. The next prime is 408479341. The reversal of 408479340 is 43974804.

It is an interprime number because it is at equal distance from previous prime (408479339) and next prime (408479341).

It is not an unprimeable number, because it can be changed into a prime (408479341) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5166 + ... + 29045.

It is an arithmetic number, because the mean of its divisors is an integer number (23948400).

Almost surely, 2^408479340 is an apocalyptic number.

It is an amenable number.

408479340 is an abundant number, since it is smaller than the sum of its proper divisors (741043860).

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

408479340 is a wasteful number, since it uses less digits than its factorization.

408479340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34422 (or 34420 counting only the distinct ones).

The product of its (nonzero) digits is 96768, while the sum is 39.

The square root of 408479340 is about 20210.8718268164. The cubic root of 408479340 is about 741.9762974873.

The spelling of 408479340 in words is "four hundred eight million, four hundred seventy-nine thousand, three hundred forty".