2318940 has 72 divisors (see below), whose sum is σ = 7582848. Its totient is φ = 570240.

The previous prime is 2318923. The next prime is 2318951. The reversal of 2318940 is 498132.

2318940 = 221² + 222² + ... + 260².

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1845 + ... + 2835.

2^2318940 is an apocalyptic number.

2318940 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 2318940, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3791424).

2318940 is an abundant number, since it is smaller than the sum of its proper divisors (5263908).

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

2318940 is a wasteful number, since it uses less digits than its factorization.

2318940 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1019 (or 1014 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 27.

The square root of 2318940 is about 1522.8066193710. The cubic root of 2318940 is about 132.3619542446.

The spelling of 2318940 in words is "two million, three hundred eighteen thousand, nine hundred forty".