409941608 has 8 divisors (see below), whose sum is σ = 768640530. Its totient is φ = 204970800.

The previous prime is 409941607. The next prime is 409941629. The reversal of 409941608 is 806149904.

It can be written as a sum of positive squares in only one way, i.e., 287573764 + 122367844 = 16958^2 + 11062^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a super-5 number, since 5×409941608⁵ (a number of 44 digits) contains 55555 as substring.

It is not an unprimeable number, because it can be changed into a prime (409941607) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25621343 + ... + 25621358.

Almost surely, 2^409941608 is an apocalyptic number.

It is an amenable number.

409941608 is a deficient number, since it is larger than the sum of its proper divisors (358698922).

409941608 is a wasteful number, since it uses less digits than its factorization.

409941608 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51242707 (or 51242703 counting only the distinct ones).

The product of its (nonzero) digits is 62208, while the sum is 41.

The square root of 409941608 is about 20247.0147923095. The cubic root of 409941608 is about 742.8606148471.

The spelling of 409941608 in words is "four hundred nine million, nine hundred forty-one thousand, six hundred eight".