312242322 has 16 divisors (see below), whose sum is σ = 713696832. Its totient is φ = 89212080.

The previous prime is 312242263. The next prime is 312242339. The reversal of 312242322 is 223242213.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3717129 + ... + 3717212.

It is an arithmetic number, because the mean of its divisors is an integer number (44606052).

Almost surely, 2^312242322 is an apocalyptic number.

312242322 is an abundant number, since it is smaller than the sum of its proper divisors (401454510).

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

312242322 is a wasteful number, since it uses less digits than its factorization.

312242322 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7434353.

The product of its digits is 1152, while the sum is 21.

The square root of 312242322 is about 17670.3797921833. The cubic root of 312242322 is about 678.4178340053.

Adding to 312242322 its reverse (223242213), we get a palindrome (535484535).

The spelling of 312242322 in words is "three hundred twelve million, two hundred forty-two thousand, three hundred twenty-two".