409479452 has 12 divisors (see below), whose sum is σ = 723684696. Its totient is φ = 202712400.

The previous prime is 409479451. The next prime is 409479457. The reversal of 409479452 is 254974904.

It is a super-2 number, since 2×409479452² = 335346843220440608, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (409479451) 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 3 ways as a sum of consecutive naturals, for example, 506378 + ... + 507185.

It is an arithmetic number, because the mean of its divisors is an integer number (60307058).

Almost surely, 2^409479452 is an apocalyptic number.

It is an amenable number.

409479452 is a deficient number, since it is larger than the sum of its proper divisors (314205244).

409479452 is a wasteful number, since it uses less digits than its factorization.

409479452 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1013668 (or 1013666 counting only the distinct ones).

The product of its (nonzero) digits is 362880, while the sum is 44.

The square root of 409479452 is about 20235.5986321137. The cubic root of 409479452 is about 742.5813502073.

The spelling of 409479452 in words is "four hundred nine million, four hundred seventy-nine thousand, four hundred fifty-two".