312227860 has 48 divisors (see below), whose sum is σ = 750395520. Its totient is φ = 106899840.

The previous prime is 312227837. The next prime is 312227863. The reversal of 312227860 is 68722213.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (312227863) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 154255 + ... + 156265.

It is an arithmetic number, because the mean of its divisors is an integer number (15633240).

Almost surely, 2^312227860 is an apocalyptic number.

It is an amenable number.

312227860 is an abundant number, since it is smaller than the sum of its proper divisors (438167660).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

312227860 is a wasteful number, since it uses less digits than its factorization.

312227860 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3136 (or 3134 counting only the distinct ones).

The product of its (nonzero) digits is 8064, while the sum is 31.

The square root of 312227860 is about 17669.9705715658. The cubic root of 312227860 is about 678.4073598431.

The spelling of 312227860 in words is "three hundred twelve million, two hundred twenty-seven thousand, eight hundred sixty".