312242456 has 8 divisors (see below), whose sum is σ = 585454620. Its totient is φ = 156121224.

The previous prime is 312242443. The next prime is 312242459. The reversal of 312242456 is 654242213.

312242456 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (312242459) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19515146 + ... + 19515161.

Almost surely, 2^312242456 is an apocalyptic number.

It is an amenable number.

312242456 is a deficient number, since it is larger than the sum of its proper divisors (273212164).

312242456 is a wasteful number, since it uses less digits than its factorization.

312242456 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39030313 (or 39030309 counting only the distinct ones).

The product of its digits is 11520, while the sum is 29.

The square root of 312242456 is about 17670.3835838388. The cubic root of 312242456 is about 678.4179310538.

Adding to 312242456 its reverse (654242213), we get a palindrome (966484669).

The spelling of 312242456 in words is "three hundred twelve million, two hundred forty-two thousand, four hundred fifty-six".