312942366 has 80 divisors (see below), whose sum is σ = 770698368. Its totient is φ = 94122000.

The previous prime is 312942349. The next prime is 312942389. The reversal of 312942366 is 663249213.

312942366 is a `hidden beast` number, since 3 + 1 + 294 + 2 + 366 = 666.

It is a self number, because there is not a number n which added to its sum of digits gives 312942366.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 268501 + ... + 269663.

Almost surely, 2^312942366 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 312942366, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (385349184).

312942366 is an abundant number, since it is smaller than the sum of its proper divisors (457756002).

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

312942366 is a wasteful number, since it uses less digits than its factorization.

312942366 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1339 (or 1330 counting only the distinct ones).

The product of its digits is 46656, while the sum is 36.

The square root of 312942366 is about 17690.1771048229. The cubic root of 312942366 is about 678.9244574604.

The spelling of 312942366 in words is "three hundred twelve million, nine hundred forty-two thousand, three hundred sixty-six".