23320002440 has 64 divisors (see below), whose sum is σ = 60161270400. Its totient is φ = 7969356288.

The previous prime is 23320002437. The next prime is 23320002443. The reversal of 23320002440 is 4420002332.

It is an interprime number because it is at equal distance from previous prime (23320002437) and next prime (23320002443).

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

It is not an unprimeable number, because it can be changed into a prime (23320002443) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 49685 + ... + 221604.

It is an arithmetic number, because the mean of its divisors is an integer number (940019850).

Almost surely, 2^23320002440 is an apocalyptic number.

23320002440 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

23320002440 is an abundant number, since it is smaller than the sum of its proper divisors (36841267960).

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

23320002440 is a wasteful number, since it uses less digits than its factorization.

23320002440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 271614 (or 271610 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 20.

Adding to 23320002440 its reverse (4420002332), we get a palindrome (27740004772).

The spelling of 23320002440 in words is "twenty-three billion, three hundred twenty million, two thousand, four hundred forty".