312248990 has 8 divisors (see below), whose sum is σ = 562048200. Its totient is φ = 124899592.

The previous prime is 312248987. The next prime is 312249043. The reversal of 312248990 is 99842213.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15612440 + ... + 15612459.

It is an arithmetic number, because the mean of its divisors is an integer number (70256025).

Almost surely, 2^312248990 is an apocalyptic number.

312248990 is a deficient number, since it is larger than the sum of its proper divisors (249799210).

312248990 is a wasteful number, since it uses less digits than its factorization.

312248990 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31224906.

The product of its (nonzero) digits is 31104, while the sum is 38.

The square root of 312248990 is about 17670.5684685015. The cubic root of 312248990 is about 678.4226632224.

The spelling of 312248990 in words is "three hundred twelve million, two hundred forty-eight thousand, nine hundred ninety".