315380780 has 48 divisors (see below), whose sum is σ = 778093344. Its totient is φ = 105861120.

The previous prime is 315380773. The next prime is 315380789. The reversal of 315380780 is 87083513.

It is a self number, because there is not a number n which added to its sum of digits gives 315380780.

It is not an unprimeable number, because it can be changed into a prime (315380789) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 52277 + ... + 57996.

It is an arithmetic number, because the mean of its divisors is an integer number (16210278).

Almost surely, 2^315380780 is an apocalyptic number.

It is an amenable number.

315380780 is an abundant number, since it is smaller than the sum of its proper divisors (462712564).

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

315380780 is a wasteful number, since it uses less digits than its factorization.

315380780 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 110306 (or 110304 counting only the distinct ones).

The product of its (nonzero) digits is 20160, while the sum is 35.

The square root of 315380780 is about 17758.9633706475. The cubic root of 315380780 is about 680.6832665085.

The spelling of 315380780 in words is "three hundred fifteen million, three hundred eighty thousand, seven hundred eighty".