312738634 has 8 divisors (see below), whose sum is σ = 505193220. Its totient is φ = 144340896.

The previous prime is 312738623. The next prime is 312738641. The reversal of 312738634 is 436837213.

312738634 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 309865609 + 2873025 = 17603^2 + 1695^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 312738593 and 312738602.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6014179 + ... + 6014230.

Almost surely, 2^312738634 is an apocalyptic number.

312738634 is a deficient number, since it is larger than the sum of its proper divisors (192454586).

312738634 is a wasteful number, since it uses less digits than its factorization.

312738634 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12028424.

The product of its digits is 72576, while the sum is 37.

The square root of 312738634 is about 17684.4178303952. The cubic root of 312738634 is about 678.7770941548. Note that the first 3 decimals are identical.

The spelling of 312738634 in words is "three hundred twelve million, seven hundred thirty-eight thousand, six hundred thirty-four".