2315538 has 24 divisors (see below), whose sum is σ = 5050188. Its totient is φ = 766752.

The previous prime is 2315503. The next prime is 2315539. The reversal of 2315538 is 8355132.

It can be written as a sum of positive squares in 2 ways, for example, as 2241009 + 74529 = 1497^2 + 273^2 .

It is not an unprimeable number, because it can be changed into a prime (2315539) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3220 + ... + 3872.

2^2315538 is an apocalyptic number.

2315538 is an abundant number, since it is smaller than the sum of its proper divisors (2734650).

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

2315538 is a wasteful number, since it uses less digits than its factorization.

2315538 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 858 (or 855 counting only the distinct ones).

The product of its digits is 3600, while the sum is 27.

The square root of 2315538 is about 1521.6891929694. The cubic root of 2315538 is about 132.2971953821.

The spelling of 2315538 in words is "two million, three hundred fifteen thousand, five hundred thirty-eight".