1316445264 has 40 divisors (see below), whose sum is σ = 3778686720. Its totient is φ = 438814944.

The previous prime is 1316445259. The next prime is 1316445271. The reversal of 1316445264 is 4625446131.

1316445264 is a `hidden beast` number, since 1 + 3 + 1 + 644 + 5 + 2 + 6 + 4 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

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, 1523232 + ... + 1524095.

It is an arithmetic number, because the mean of its divisors is an integer number (94467168).

Almost surely, 2^1316445264 is an apocalyptic number.

It is an amenable number.

1316445264 is an abundant number, since it is smaller than the sum of its proper divisors (2462241456).

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

1316445264 is a wasteful number, since it uses less digits than its factorization.

1316445264 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3047344 (or 3047332 counting only the distinct ones).

The product of its digits is 69120, while the sum is 36.

The square root of 1316445264 is about 36282.8508251488. The cubic root of 1316445264 is about 1095.9757262814.

The spelling of 1316445264 in words is "one billion, three hundred sixteen million, four hundred forty-five thousand, two hundred sixty-four".