2301840 has 120 divisors (see below), whose sum is σ = 8124480. Its totient is φ = 582912.

The previous prime is 2301829. The next prime is 2301841. The reversal of 2301840 is 481032.

It is a happy number.

2301840 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (120).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (2301841) 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, 16491 + ... + 16629.

It is an arithmetic number, because the mean of its divisors is an integer number (67704).

2^2301840 is an apocalyptic number.

2301840 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 2301840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4062240).

2301840 is an abundant number, since it is smaller than the sum of its proper divisors (5822640).

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

2301840 is a wasteful number, since it uses less digits than its factorization.

2301840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 181 (or 172 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

The square root of 2301840 is about 1517.1815975683. The cubic root of 2301840 is about 132.0358029603.

Adding to 2301840 its product of nonzero digits (192), we get a palindrome (2302032).

Adding to 2301840 its reverse (481032), we get a palindrome (2782872).

The spelling of 2301840 in words is "two million, three hundred one thousand, eight hundred forty".