312442422 has 64 divisors (see below), whose sum is σ = 700254720. Its totient is φ = 92358144.

The previous prime is 312442391. The next prime is 312442457. The reversal of 312442422 is 224244213.

It is a junction number, because it is equal to n+sod(n) for n = 312442392 and 312442401.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 509388 + ... + 510000.

It is an arithmetic number, because the mean of its divisors is an integer number (10941480).

Almost surely, 2^312442422 is an apocalyptic number.

312442422 is an abundant number, since it is smaller than the sum of its proper divisors (387812298).

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

312442422 is a wasteful number, since it uses less digits than its factorization.

312442422 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 917.

The product of its digits is 3072, while the sum is 24.

The square root of 312442422 is about 17676.0409028719. The cubic root of 312442422 is about 678.5627240588.

Adding to 312442422 its reverse (224244213), we get a palindrome (536686635).

The spelling of 312442422 in words is "three hundred twelve million, four hundred forty-two thousand, four hundred twenty-two".