1313793722 has 32 divisors (see below), whose sum is σ = 2128524480. Its totient is φ = 606286080.

The previous prime is 1313793721. The next prime is 1313793731. The reversal of 1313793722 is 2273973131.

It is a super-2 number, since 2×1313793722² = 3452107887933226568, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (38).

It is not an unprimeable number, because it can be changed into a prime (1313793721) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 245378 + ... + 250674.

It is an arithmetic number, because the mean of its divisors is an integer number (66516390).

Almost surely, 2^1313793722 is an apocalyptic number.

1313793722 is a deficient number, since it is larger than the sum of its proper divisors (814730758).

1313793722 is a wasteful number, since it uses less digits than its factorization.

1313793722 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5486.

The product of its digits is 47628, while the sum is 38.

The square root of 1313793722 is about 36246.2925276503. The cubic root of 1313793722 is about 1095.2394052687.

The spelling of 1313793722 in words is "one billion, three hundred thirteen million, seven hundred ninety-three thousand, seven hundred twenty-two".