2315680 has 48 divisors (see below), whose sum is σ = 5620104. Its totient is φ = 901120.

The previous prime is 2315659. The next prime is 2315683. The reversal of 2315680 is 865132.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 1140624 + 1175056 = 1068^2 + 1084^2 .

It is not an unprimeable number, because it can be changed into a prime (2315683) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6384 + ... + 6736.

2^2315680 is an apocalyptic number.

2315680 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2315680, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2810052).

2315680 is an abundant number, since it is smaller than the sum of its proper divisors (3304424).

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

2315680 is a wasteful number, since it uses less digits than its factorization.

2315680 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 409 (or 401 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 25.

The square root of 2315680 is about 1521.7358509281. The cubic root of 2315680 is about 132.2998996950.

The spelling of 2315680 in words is "two million, three hundred fifteen thousand, six hundred eighty".