312744406 has 16 divisors (see below), whose sum is σ = 507326400. Its totient is φ = 143736768.

The previous prime is 312744403. The next prime is 312744431. The reversal of 312744406 is 604447213.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (312744401) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18951 + ... + 31378.

It is an arithmetic number, because the mean of its divisors is an integer number (31707900).

Almost surely, 2^312744406 is an apocalyptic number.

312744406 is a deficient number, since it is larger than the sum of its proper divisors (194581994).

312744406 is a wasteful number, since it uses less digits than its factorization.

312744406 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50583.

The product of its (nonzero) digits is 16128, while the sum is 31.

The square root of 312744406 is about 17684.5810241577. The cubic root of 312744406 is about 678.7812700350.

The spelling of 312744406 in words is "three hundred twelve million, seven hundred forty-four thousand, four hundred six".