2303240 has 32 divisors (see below), whose sum is σ = 5261760. Its totient is φ = 907200.

The previous prime is 2303239. The next prime is 2303251. The reversal of 2303240 is 423032.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2435 + ... + 3245.

It is an arithmetic number, because the mean of its divisors is an integer number (164430).

2^2303240 is an apocalyptic number.

2303240 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 2303240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2630880).

2303240 is an abundant number, since it is smaller than the sum of its proper divisors (2958520).

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

2303240 is a wasteful number, since it uses less digits than its factorization.

2303240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 893 (or 889 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 14.

The square root of 2303240 is about 1517.6429092511. The cubic root of 2303240 is about 132.0625659935.

Adding to 2303240 its reverse (423032), we get a palindrome (2726272).

The spelling of 2303240 in words is "two million, three hundred three thousand, two hundred forty".