1308013920 has 120 divisors (see below), whose sum is σ = 4616244864. Its totient is φ = 348800256.

The previous prime is 1308013913. The next prime is 1308013921. The reversal of 1308013920 is 293108031.

It is a tau number, because it is divible by the number of its divisors (120).

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1308013921) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 37504 + ... + 63423.

Almost surely, 2^1308013920 is an apocalyptic number.

1308013920 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1308013920 is an abundant number, since it is smaller than the sum of its proper divisors (3308230944).

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

1308013920 is a wasteful number, since it uses less digits than its factorization.

1308013920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 100954 (or 100937 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 27.

The square root of 1308013920 is about 36166.4750839780. The cubic root of 1308013920 is about 1093.6309405315.

It can be divided in two parts, 13080 and 13920, that added together give a cube (27000 = 30³).

The spelling of 1308013920 in words is "one billion, three hundred eight million, thirteen thousand, nine hundred twenty".