409641252 has 24 divisors (see below), whose sum is σ = 968925216. Its totient is φ = 134676288.

The previous prime is 409641251. The next prime is 409641257. The reversal of 409641252 is 252146904.

It is not an unprimeable number, because it can be changed into a prime (409641251) by changing a digit.

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, 232938 + ... + 234689.

It is an arithmetic number, because the mean of its divisors is an integer number (40371884).

Almost surely, 2^409641252 is an apocalyptic number.

It is an amenable number.

409641252 is an abundant number, since it is smaller than the sum of its proper divisors (559283964).

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

409641252 is a wasteful number, since it uses less digits than its factorization.

409641252 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 467707 (or 467705 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 33.

The square root of 409641252 is about 20239.5961422159. The cubic root of 409641252 is about 742.6791441586.

The spelling of 409641252 in words is "four hundred nine million, six hundred forty-one thousand, two hundred fifty-two".