1318265418 has 16 divisors (see below), whose sum is σ = 2641778496. Its totient is φ = 438547200.

The previous prime is 1318265413. The next prime is 1318265453. The reversal of 1318265418 is 8145628131.

It is not an unprimeable number, because it can be changed into a prime (1318265413) 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 7 ways as a sum of consecutive naturals, for example, 215383 + ... + 221418.

It is an arithmetic number, because the mean of its divisors is an integer number (165111156).

Almost surely, 2^1318265418 is an apocalyptic number.

1318265418 is an abundant number, since it is smaller than the sum of its proper divisors (1323513078).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1318265418 is a wasteful number, since it uses less digits than its factorization.

1318265418 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 437309.

The product of its digits is 46080, while the sum is 39.

The square root of 1318265418 is about 36307.9250026768. The cubic root of 1318265418 is about 1096.4806025535.

The spelling of 1318265418 in words is "one billion, three hundred eighteen million, two hundred sixty-five thousand, four hundred eighteen".