2389140 has 72 divisors (see below), whose sum is σ = 7812168. Its totient is φ = 587520.

The previous prime is 2389109. The next prime is 2389141. The reversal of 2389140 is 419832.

It can be written as a sum of positive squares in 4 ways, for example, as 66564 + 2322576 = 258^2 + 1524^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2389141) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1830 + ... + 2850.

2^2389140 is an apocalyptic number.

2389140 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 2389140, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3906084).

2389140 is an abundant number, since it is smaller than the sum of its proper divisors (5423028).

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

2389140 is a wasteful number, since it uses less digits than its factorization.

2389140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1049 (or 1044 counting only the distinct ones).

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

The square root of 2389140 is about 1545.6843144705. The cubic root of 2389140 is about 133.6843390405.

The spelling of 2389140 in words is "two million, three hundred eighty-nine thousand, one hundred forty".