2331840 has 112 divisors (see below), whose sum is σ = 8485632. Its totient is φ = 531456.

The previous prime is 2331829. The next prime is 2331859. The reversal of 2331840 is 481332.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (112).

It is a Harshad number since it is a multiple of its sum of digits (21).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6547 + ... + 6893.

2^2331840 is an apocalyptic number.

2331840 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 2331840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4242816).

2331840 is an abundant number, since it is smaller than the sum of its proper divisors (6153792).

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

2331840 is a wasteful number, since it uses less digits than its factorization.

2331840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 374 (or 364 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 21.

The square root of 2331840 is about 1527.0363453435. The cubic root of 2331840 is about 132.6069387068.

The spelling of 2331840 in words is "two million, three hundred thirty-one thousand, eight hundred forty".