1373315620 has 12 divisors (see below), whose sum is σ = 2883962844. Its totient is φ = 549326240.

The previous prime is 1373315609. The next prime is 1373315633. The reversal of 1373315620 is 265133731.

It can be written as a sum of positive squares in 2 ways, for example, as 168948004 + 1204367616 = 12998^2 + 34704^2 .

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 34332871 + ... + 34332910.

It is an arithmetic number, because the mean of its divisors is an integer number (240330237).

Almost surely, 2^1373315620 is an apocalyptic number.

1373315620 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1373315620 is an abundant number, since it is smaller than the sum of its proper divisors (1510647224).

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

1373315620 is a wasteful number, since it uses less digits than its factorization.

1373315620 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 68665790 (or 68665788 counting only the distinct ones).

The product of its (nonzero) digits is 11340, while the sum is 31.

The square root of 1373315620 is about 37058.2733003037. The cubic root of 1373315620 is about 1111.5357957987.

The spelling of 1373315620 in words is "one billion, three hundred seventy-three million, three hundred fifteen thousand, six hundred twenty".