312448772 has 12 divisors (see below), whose sum is σ = 548336796. Its totient is φ = 155781120.

The previous prime is 312448739. The next prime is 312448781. The reversal of 312448772 is 277844213.

It can be written as a sum of positive squares in 2 ways, for example, as 67338436 + 245110336 = 8206^2 + 15656^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 109229 + ... + 112052.

It is an arithmetic number, because the mean of its divisors is an integer number (45694733).

Almost surely, 2^312448772 is an apocalyptic number.

It is an amenable number.

312448772 is a deficient number, since it is larger than the sum of its proper divisors (235888024).

312448772 is a wasteful number, since it uses less digits than its factorization.

312448772 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 221638 (or 221636 counting only the distinct ones).

The product of its digits is 75264, while the sum is 38.

The square root of 312448772 is about 17676.2205236300. The cubic root of 312448772 is about 678.5673210061.

The spelling of 312448772 in words is "three hundred twelve million, four hundred forty-eight thousand, seven hundred seventy-two".