2313240 has 64 divisors (see below), whose sum is σ = 7140960. Its totient is φ = 599040.

The previous prime is 2313239. The next prime is 2313247. The reversal of 2313240 is 423132.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2313247) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4180 + ... + 4700.

2^2313240 is an apocalyptic number.

2313240 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 2313240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3570480).

2313240 is an abundant number, since it is smaller than the sum of its proper divisors (4827720).

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

2313240 is a wasteful number, since it uses less digits than its factorization.

2313240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 572 (or 568 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 15.

The square root of 2313240 is about 1520.9339236140. The cubic root of 2313240 is about 132.2534158396.

Adding to 2313240 its reverse (423132), we get a palindrome (2736372).

The spelling of 2313240 in words is "two million, three hundred thirteen thousand, two hundred forty".