409380479 has 16 divisors (see below), whose sum is σ = 436154880. Its totient is φ = 383162400.

The previous prime is 409380467. The next prime is 409380529. The reversal of 409380479 is 974083904.

It is a cyclic number.

It is not a de Polignac number, because 409380479 - 2⁴ = 409380463 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (409380379) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 840374 + ... + 840860.

It is an arithmetic number, because the mean of its divisors is an integer number (27259680).

Almost surely, 2^409380479 is an apocalyptic number.

409380479 is a deficient number, since it is larger than the sum of its proper divisors (26774401).

409380479 is a wasteful number, since it uses less digits than its factorization.

409380479 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 950.

The product of its (nonzero) digits is 217728, while the sum is 44.

The square root of 409380479 is about 20233.1529673455. The cubic root of 409380479 is about 742.5215169843.

The spelling of 409380479 in words is "four hundred nine million, three hundred eighty thousand, four hundred seventy-nine".