1308764916 has 72 divisors (see below), whose sum is σ = 3524495520. Its totient is φ = 408297024.

The previous prime is 1308764887. The next prime is 1308764927. The reversal of 1308764916 is 6194678031.

It is a happy number.

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 23 ways as a sum of consecutive naturals, for example, 45246 + ... + 68298.

Almost surely, 2^1308764916 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1308764916, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1762247760).

1308764916 is an abundant number, since it is smaller than the sum of its proper divisors (2215730604).

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

1308764916 is a wasteful number, since it uses less digits than its factorization.

1308764916 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23165 (or 23160 counting only the distinct ones).

The product of its (nonzero) digits is 217728, while the sum is 45.

The square root of 1308764916 is about 36176.8560823076. The cubic root of 1308764916 is about 1093.8402031685.

The spelling of 1308764916 in words is "one billion, three hundred eight million, seven hundred sixty-four thousand, nine hundred sixteen".