409547472 has 40 divisors (see below), whose sum is σ = 1080514176. Its totient is φ = 133610496.

The previous prime is 409547461. The next prime is 409547477. The reversal of 409547472 is 274745904.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (409547477) 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, 88513 + ... + 93024.

Almost surely, 2^409547472 is an apocalyptic number.

It is an amenable number.

409547472 is an abundant number, since it is smaller than the sum of its proper divisors (670966704).

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

409547472 is a wasteful number, since it uses less digits than its factorization.

409547472 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 181595 (or 181589 counting only the distinct ones).

The product of its (nonzero) digits is 282240, while the sum is 42.

The square root of 409547472 is about 20237.2792637746. The cubic root of 409547472 is about 742.6224654872.

The spelling of 409547472 in words is "four hundred nine million, five hundred forty-seven thousand, four hundred seventy-two".