479456409 has 8 divisors (see below), whose sum is σ = 640657792. Its totient is φ = 318946320.

The previous prime is 479456399. The next prime is 479456429. The reversal of 479456409 is 904654974.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 479456409 - 2⁵ = 479456377 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (479456429) 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, 171202 + ... + 173979.

It is an arithmetic number, because the mean of its divisors is an integer number (80082224).

Almost surely, 2^479456409 is an apocalyptic number.

It is an amenable number.

479456409 is a deficient number, since it is larger than the sum of its proper divisors (161201383).

479456409 is a wasteful number, since it uses less digits than its factorization.

479456409 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 345647.

The product of its (nonzero) digits is 1088640, while the sum is 48.

The square root of 479456409 is about 21896.4930753762. The cubic root of 479456409 is about 782.6778489753.

The spelling of 479456409 in words is "four hundred seventy-nine million, four hundred fifty-six thousand, four hundred nine".