1313779044 has 24 divisors (see below), whose sum is σ = 3198767040. Its totient is φ = 418885984.

The previous prime is 1313779037. The next prime is 1313779087. The reversal of 1313779044 is 4409773131.

It is a junction number, because it is equal to n+sod(n) for n = 1313778993 and 1313779011.

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, 2379759 + ... + 2380310.

It is an arithmetic number, because the mean of its divisors is an integer number (133281960).

Almost surely, 2^1313779044 is an apocalyptic number.

It is an amenable number.

1313779044 is an abundant number, since it is smaller than the sum of its proper divisors (1884987996).

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

1313779044 is a wasteful number, since it uses less digits than its factorization.

1313779044 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4760099 (or 4760097 counting only the distinct ones).

The product of its (nonzero) digits is 63504, while the sum is 39.

The square root of 1313779044 is about 36246.0900512041. The cubic root of 1313779044 is about 1095.2353264996.

The spelling of 1313779044 in words is "one billion, three hundred thirteen million, seven hundred seventy-nine thousand, forty-four".