1307445818 has 16 divisors (see below), whose sum is σ = 2278080384. Its totient is φ = 551147760.

The previous prime is 1307445793. The next prime is 1307445869. The reversal of 1307445818 is 8185447031.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 764630 + ... + 766337.

It is an arithmetic number, because the mean of its divisors is an integer number (142380024).

Almost surely, 2^1307445818 is an apocalyptic number.

1307445818 is a deficient number, since it is larger than the sum of its proper divisors (970634566).

1307445818 is a wasteful number, since it uses less digits than its factorization.

1307445818 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1531037.

The product of its (nonzero) digits is 107520, while the sum is 41.

The square root of 1307445818 is about 36158.6202446941. The cubic root of 1307445818 is about 1093.4725875037.

The spelling of 1307445818 in words is "one billion, three hundred seven million, four hundred forty-five thousand, eight hundred eighteen".