1313947830 has 32 divisors (see below), whose sum is σ = 3396050784. Its totient is φ = 323433216.

The previous prime is 1313947819. The next prime is 1313947853. The reversal of 1313947830 is 387493131.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a congruent number.

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 15 ways as a sum of consecutive naturals, for example, 1684159 + ... + 1684938.

It is an arithmetic number, because the mean of its divisors is an integer number (106126587).

Almost surely, 2^1313947830 is an apocalyptic number.

1313947830 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1313947830 is an abundant number, since it is smaller than the sum of its proper divisors (2082102954).

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

1313947830 is a wasteful number, since it uses less digits than its factorization.

1313947830 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3369120.

The product of its (nonzero) digits is 54432, while the sum is 39.

The square root of 1313947830 is about 36248.4183103208. The cubic root of 1313947830 is about 1095.2822274541.

The spelling of 1313947830 in words is "one billion, three hundred thirteen million, nine hundred forty-seven thousand, eight hundred thirty".