1308742860 has 24 divisors (see below), whose sum is σ = 3664480176. Its totient is φ = 348998080.

The previous prime is 1308742847. The next prime is 1308742879. The reversal of 1308742860 is 682478031.

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 7 ways as a sum of consecutive naturals, for example, 10906131 + ... + 10906250.

It is an arithmetic number, because the mean of its divisors is an integer number (152686674).

Almost surely, 2^1308742860 is an apocalyptic number.

1308742860 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1308742860 is an abundant number, since it is smaller than the sum of its proper divisors (2355737316).

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

1308742860 is a wasteful number, since it uses less digits than its factorization.

1308742860 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21812393 (or 21812391 counting only the distinct ones).

The product of its (nonzero) digits is 64512, while the sum is 39.

The square root of 1308742860 is about 36176.5512452472. The cubic root of 1308742860 is about 1093.8340584757.

The spelling of 1308742860 in words is "one billion, three hundred eight million, seven hundred forty-two thousand, eight hundred sixty".