2315978 has 32 divisors (see below), whose sum is σ = 4333824. Its totient is φ = 905472.

The previous prime is 2315959. The next prime is 2315981. The reversal of 2315978 is 8795132.

2315978 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is an upside-down number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8675 + ... + 8937.

It is an arithmetic number, because the mean of its divisors is an integer number (135432).

2^2315978 is an apocalyptic number.

2315978 is a deficient number, since it is larger than the sum of its proper divisors (2017846).

2315978 is a wasteful number, since it uses less digits than its factorization.

2315978 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 326.

The product of its digits is 15120, while the sum is 35.

The square root of 2315978 is about 1521.8337622750. The cubic root of 2315978 is about 132.3055745837.

The spelling of 2315978 in words is "two million, three hundred fifteen thousand, nine hundred seventy-eight".