409395180 has 24 divisors (see below), whose sum is σ = 1146306672. Its totient is φ = 109172032.

The previous prime is 409395167. The next prime is 409395187. The reversal of 409395180 is 81593904.

It is a hoax number, since the sum of its digits (39) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (409395187) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3411567 + ... + 3411686.

It is an arithmetic number, because the mean of its divisors is an integer number (47762778).

Almost surely, 2^409395180 is an apocalyptic number.

It is an amenable number.

409395180 is an abundant number, since it is smaller than the sum of its proper divisors (736911492).

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

409395180 is a wasteful number, since it uses less digits than its factorization.

409395180 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6823265 (or 6823263 counting only the distinct ones).

The product of its (nonzero) digits is 38880, while the sum is 39.

The square root of 409395180 is about 20233.5162539782. The cubic root of 409395180 is about 742.5304049493.

The spelling of 409395180 in words is "four hundred nine million, three hundred ninety-five thousand, one hundred eighty".