380479491 has 16 divisors (see below), whose sum is σ = 644198400. Its totient is φ = 217416744.

The previous prime is 380479471. The next prime is 380479511. The reversal of 380479491 is 194974083.

It is an interprime number because it is at equal distance from previous prime (380479471) and next prime (380479511).

It is not a de Polignac number, because 380479491 - 2⁹ = 380478979 is a prime.

It is not an unprimeable number, because it can be changed into a prime (380479441) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1006371 + ... + 1006748.

It is an arithmetic number, because the mean of its divisors is an integer number (40262400).

Almost surely, 2^380479491 is an apocalyptic number.

380479491 is a deficient number, since it is larger than the sum of its proper divisors (263718909).

380479491 is a wasteful number, since it uses less digits than its factorization.

380479491 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2013135 (or 2013129 counting only the distinct ones).

The product of its (nonzero) digits is 217728, while the sum is 45.

The square root of 380479491 is about 19505.8834970375. The cubic root of 380479491 is about 724.6201679032.

The spelling of 380479491 in words is "three hundred eighty million, four hundred seventy-nine thousand, four hundred ninety-one".