2389860 has 144 divisors (see below), whose sum is σ = 8491392. Its totient is φ = 537600.

The previous prime is 2389859. The next prime is 2389873. The reversal of 2389860 is 689832.

2389860 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 super-2 number, since 2×2389860² = 11422861639200, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

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 47 ways as a sum of consecutive naturals, for example, 33625 + ... + 33695.

It is an arithmetic number, because the mean of its divisors is an integer number (58968).

2^2389860 is an apocalyptic number.

2389860 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 2389860, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4245696).

2389860 is an abundant number, since it is smaller than the sum of its proper divisors (6101532).

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

2389860 is a wasteful number, since it uses less digits than its factorization.

2389860 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 114 (or 109 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 36.

The square root of 2389860 is about 1545.9172034750. The cubic root of 2389860 is about 133.6977668927.

It can be divided in two parts, 2389 and 860, that added together give a square (3249 = 57²).

The spelling of 2389860 in words is "two million, three hundred eighty-nine thousand, eight hundred sixty".