2315990 has 8 divisors (see below), whose sum is σ = 4168800. Its totient is φ = 926392.

The previous prime is 2315983. The next prime is 2315993. The reversal of 2315990 is 995132.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2315993) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 115790 + ... + 115809.

It is an arithmetic number, because the mean of its divisors is an integer number (521100).

2^2315990 is an apocalyptic number.

2315990 is a deficient number, since it is larger than the sum of its proper divisors (1852810).

2315990 is a wasteful number, since it uses less digits than its factorization.

2315990 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 231606.

The product of its (nonzero) digits is 2430, while the sum is 29.

The square root of 2315990 is about 1521.8377048818. The cubic root of 2315990 is about 132.3058030925.

The spelling of 2315990 in words is "two million, three hundred fifteen thousand, nine hundred ninety".