312074478 has 32 divisors (see below), whose sum is σ = 709632000. Its totient is φ = 101604888.

The previous prime is 312074471. The next prime is 312074479. The reversal of 312074478 is 874470213.

It is a happy number.

312074478 is a `hidden beast` number, since 3 + 1 + 207 + 447 + 8 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (312074471) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 64878 + ... + 69521.

It is an arithmetic number, because the mean of its divisors is an integer number (22176000).

Almost surely, 2^312074478 is an apocalyptic number.

312074478 is an abundant number, since it is smaller than the sum of its proper divisors (397557522).

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

312074478 is a wasteful number, since it uses less digits than its factorization.

312074478 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 134453 (or 134447 counting only the distinct ones).

The product of its (nonzero) digits is 37632, while the sum is 36.

The square root of 312074478 is about 17665.6298500789. The cubic root of 312074478 is about 678.2962523959.

The spelling of 312074478 in words is "three hundred twelve million, seventy-four thousand, four hundred seventy-eight".