2389240 has 96 divisors (see below), whose sum is σ = 6648480. Its totient is φ = 768768.

The previous prime is 2389213. The next prime is 2389241. The reversal of 2389240 is 429832.

2389240 is digitally balanced in base 2 and base 5, because in such bases it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is a junction number, because it is equal to n+sod(n) for n = 2389199 and 2389208.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2389241) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 45054 + ... + 45106.

It is an arithmetic number, because the mean of its divisors is an integer number (69255).

2^2389240 is an apocalyptic number.

2389240 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 2389240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3324240).

2389240 is an abundant number, since it is smaller than the sum of its proper divisors (4259240).

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

2389240 is a wasteful number, since it uses less digits than its factorization.

2389240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 101 (or 90 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 28.

The square root of 2389240 is about 1545.7166622638. The cubic root of 2389240 is about 133.6862041813.

It can be divided in two parts, 23892 and 40, that added together give a palindrome (23932).

The spelling of 2389240 in words is "two million, three hundred eighty-nine thousand, two hundred forty".