315488644 has 27 divisors (see below), whose sum is σ = 564108727. Its totient is φ = 154387304.

The previous prime is 315488617. The next prime is 315488647. The reversal of 315488644 is 446884513.

The square root of 315488644 is 17762.

It is a perfect power (a square), and thus also a powerful number.

It is a Duffinian number.

Its product of digits (368640) is a multiple of the sum of its prime divisors (192).

It is a self number, because there is not a number n which added to its sum of digits gives 315488644.

It is not an unprimeable number, because it can be changed into a prime (315488647) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 2948439 + ... + 2948545.

Almost surely, 2^315488644 is an apocalyptic number.

315488644 is the 17762-nd square number.

It is an amenable number.

315488644 is a deficient number, since it is larger than the sum of its proper divisors (248620083).

315488644 is an equidigital number, since it uses as much as digits as its factorization.

315488644 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 384 (or 192 counting only the distinct ones).

The product of its digits is 368640, while the sum is 43.

The cubic root of 315488644 is about 680.7608582704.

The spelling of 315488644 in words is "three hundred fifteen million, four hundred eighty-eight thousand, six hundred forty-four".