2323220640 has 96 divisors (see below), whose sum is σ = 7881100416. Its totient is φ = 571868160.

The previous prime is 2323220591. The next prime is 2323220651. The reversal of 2323220640 is 460223232.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (96).

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a self number, because there is not a number n which added to its sum of digits gives 2323220640.

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, 179916 + ... + 192395.

It is an arithmetic number, because the mean of its divisors is an integer number (82094796).

Almost surely, 2^2323220640 is an apocalyptic number.

2323220640 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2323220640 is an abundant number, since it is smaller than the sum of its proper divisors (5557879776).

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

2323220640 is a wasteful number, since it uses less digits than its factorization.

2323220640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 372342 (or 372334 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 24.

The square root of 2323220640 is about 48199.7991697061. The cubic root of 2323220640 is about 1324.4334855965.

Adding to 2323220640 its reverse (460223232), we get a palindrome (2783443872).

The spelling of 2323220640 in words is "two billion, three hundred twenty-three million, two hundred twenty thousand, six hundred forty".