312638227 has 12 divisors (see below), whose sum is σ = 349476120. Its totient is φ = 279392960.

The previous prime is 312638213. The next prime is 312638239. The reversal of 312638227 is 722836213.

It is not a de Polignac number, because 312638227 - 2⁷ = 312638099 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 312638192 and 312638201.

It is not an unprimeable number, because it can be changed into a prime (312638327) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 14758 + ... + 29035.

It is an arithmetic number, because the mean of its divisors is an integer number (29123010).

Almost surely, 2^312638227 is an apocalyptic number.

312638227 is a deficient number, since it is larger than the sum of its proper divisors (36837893).

312638227 is a wasteful number, since it uses less digits than its factorization.

312638227 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43874 (or 43863 counting only the distinct ones).

The product of its digits is 24192, while the sum is 34.

The square root of 312638227 is about 17681.5787473857. The cubic root of 312638227 is about 678.7044442811.

The spelling of 312638227 in words is "three hundred twelve million, six hundred thirty-eight thousand, two hundred twenty-seven".