1307179872 has 72 divisors (see below), whose sum is σ = 3845499840. Its totient is φ = 420698880.

The previous prime is 1307179847. The next prime is 1307179877. The reversal of 1307179872 is 2789717031.

It is a tau number, because it is divible by the number of its divisors (72).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1307179877) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 69904 + ... + 86607.

It is an arithmetic number, because the mean of its divisors is an integer number (53409720).

Almost surely, 2^1307179872 is an apocalyptic number.

1307179872 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1307179872 is an abundant number, since it is smaller than the sum of its proper divisors (2538319968).

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

1307179872 is a wasteful number, since it uses less digits than its factorization.

1307179872 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 156556 (or 156545 counting only the distinct ones).

The product of its (nonzero) digits is 148176, while the sum is 45.

The square root of 1307179872 is about 36154.9425666810. The cubic root of 1307179872 is about 1093.3984418230.

The spelling of 1307179872 in words is "one billion, three hundred seven million, one hundred seventy-nine thousand, eight hundred seventy-two".