2318380 has 24 divisors (see below), whose sum is σ = 5125680. Its totient is φ = 878400.

The previous prime is 2318357. The next prime is 2318387. The reversal of 2318380 is 838132.

It is a hoax number, since the sum of its digits (25) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (2318387) 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, 2671 + ... + 3430.

It is an arithmetic number, because the mean of its divisors is an integer number (213570).

2^2318380 is an apocalyptic number.

2318380 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2318380 is an abundant number, since it is smaller than the sum of its proper divisors (2807300).

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

2318380 is a wasteful number, since it uses less digits than its factorization.

2318380 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6129 (or 6127 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 25.

The square root of 2318380 is about 1522.6227372531. The cubic root of 2318380 is about 132.3512987063.

It can be divided in two parts, 23 and 18380, that multiplied together give a triangular number (422740 = T₉₁₉).

The spelling of 2318380 in words is "two million, three hundred eighteen thousand, three hundred eighty".