318415490 has 32 divisors (see below), whose sum is σ = 612342720. Its totient is φ = 118857024.

The previous prime is 318415481. The next prime is 318415499. The reversal of 318415490 is 94514813.

It is an interprime number because it is at equal distance from previous prime (318415481) and next prime (318415499).

It is a self number, because there is not a number n which added to its sum of digits gives 318415490.

It is not an unprimeable number, because it can be changed into a prime (318415499) 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, 224 + ... + 25236.

It is an arithmetic number, because the mean of its divisors is an integer number (19135710).

Almost surely, 2^318415490 is an apocalyptic number.

318415490 is a deficient number, since it is larger than the sum of its proper divisors (293927230).

318415490 is a wasteful number, since it uses less digits than its factorization.

318415490 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25106.

The product of its (nonzero) digits is 17280, while the sum is 35.

The square root of 318415490 is about 17844.2004584123. The cubic root of 318415490 is about 682.8595626700.

The spelling of 318415490 in words is "three hundred eighteen million, four hundred fifteen thousand, four hundred ninety".