312013422 has 24 divisors (see below), whose sum is σ = 772604976. Its totient is φ = 89146656.

The previous prime is 312013409. The next prime is 312013433. The reversal of 312013422 is 224310213.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 312013395 and 312013404.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1238023 + ... + 1238274.

It is an arithmetic number, because the mean of its divisors is an integer number (32191874).

Almost surely, 2^312013422 is an apocalyptic number.

312013422 is an abundant number, since it is smaller than the sum of its proper divisors (460591554).

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

312013422 is a wasteful number, since it uses less digits than its factorization.

312013422 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2476312 (or 2476309 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

The square root of 312013422 is about 17663.9016641285. The cubic root of 312013422 is about 678.2520142839.

Adding to 312013422 its reverse (224310213), we get a palindrome (536323635).

The spelling of 312013422 in words is "three hundred twelve million, thirteen thousand, four hundred twenty-two".