312645460 has 24 divisors (see below), whose sum is σ = 659312640. Its totient is φ = 124533024.

The previous prime is 312645439. The next prime is 312645461. The reversal of 312645460 is 64546213.

312645460 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×312645460² = 195494367317223200, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (312645461) 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, 27924 + ... + 37483.

It is an arithmetic number, because the mean of its divisors is an integer number (27471360).

Almost surely, 2^312645460 is an apocalyptic number.

It is an amenable number.

312645460 is an abundant number, since it is smaller than the sum of its proper divisors (346667180).

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

312645460 is a wasteful number, since it uses less digits than its factorization.

312645460 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65655 (or 65653 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 31.

The square root of 312645460 is about 17681.7832811060. The cubic root of 312645460 is about 678.7096782661.

The spelling of 312645460 in words is "three hundred twelve million, six hundred forty-five thousand, four hundred sixty".