312342407 has 4 divisors (see below), whose sum is σ = 336368760. Its totient is φ = 288316056.

The previous prime is 312342361. The next prime is 312342413. The reversal of 312342407 is 704243213.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-312342407 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (312342427) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12013157 + ... + 12013182.

It is an arithmetic number, because the mean of its divisors is an integer number (84092190).

Almost surely, 2^312342407 is an apocalyptic number.

312342407 is a deficient number, since it is larger than the sum of its proper divisors (24026353).

312342407 is a wasteful number, since it uses less digits than its factorization.

312342407 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24026352.

The product of its (nonzero) digits is 4032, while the sum is 26.

The square root of 312342407 is about 17673.2115643988. The cubic root of 312342407 is about 678.4903121103.

The spelling of 312342407 in words is "three hundred twelve million, three hundred forty-two thousand, four hundred seven".