2323640 has 32 divisors (see below), whose sum is σ = 5704560. Its totient is φ = 844800.

The previous prime is 2323631. The next prime is 2323669. The reversal of 2323640 is 463232.

2323640 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-3 number, since 3×2323640³ = 37638108220333632000, which contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a congruent number.

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 7 ways as a sum of consecutive naturals, for example, 2201 + ... + 3080.

2^2323640 is an apocalyptic number.

2323640 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2323640 is an abundant number, since it is smaller than the sum of its proper divisors (3380920).

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

2323640 is a wasteful number, since it uses less digits than its factorization.

2323640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5303 (or 5299 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 20.

The square root of 2323640 is about 1524.3490413944. The cubic root of 2323640 is about 132.4513171099.

Adding to 2323640 its reverse (463232), we get a palindrome (2786872).

The spelling of 2323640 in words is "two million, three hundred twenty-three thousand, six hundred forty".