12757320 has 48 divisors (see below), whose sum is σ = 41462460. Its totient is φ = 3401856.

The previous prime is 12757313. The next prime is 12757331. The reversal of 12757320 is 2375721.

It can be written as a sum of positive squares in 2 ways, for example, as 12404484 + 352836 = 3522^2 + 594^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 17359 + ... + 18078.

Almost surely, 2^12757320 is an apocalyptic number.

12757320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12757320 is an abundant number, since it is smaller than the sum of its proper divisors (28705140).

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

12757320 is a wasteful number, since it uses less digits than its factorization.

12757320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35454 (or 35447 counting only the distinct ones).

The product of its (nonzero) digits is 2940, while the sum is 27.

The square root of 12757320 is about 3571.7390722168. The cubic root of 12757320 is about 233.6611356376.

The spelling of 12757320 in words is "twelve million, seven hundred fifty-seven thousand, three hundred twenty".