312226018 has 16 divisors (see below), whose sum is σ = 504725760. Its totient is φ = 144001296.

The previous prime is 312226009. The next prime is 312226027. The reversal of 312226018 is 810622213.

It is an interprime number because it is at equal distance from previous prime (312226009) and next prime (312226027).

It is a super-2 number, since 2×312226018² = 194970172632272648, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 312225983 and 312226001.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 42321 + ... + 49147.

It is an arithmetic number, because the mean of its divisors is an integer number (31545360).

Almost surely, 2^312226018 is an apocalyptic number.

312226018 is a deficient number, since it is larger than the sum of its proper divisors (192499742).

312226018 is a wasteful number, since it uses less digits than its factorization.

312226018 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8601.

The product of its (nonzero) digits is 1152, while the sum is 25.

The square root of 312226018 is about 17669.9184491610. The cubic root of 312226018 is about 678.4060257439.

The spelling of 312226018 in words is "three hundred twelve million, two hundred twenty-six thousand, eighteen".