23444323240 has 32 divisors (see below), whose sum is σ = 56807399880. Its totient is φ = 8656365312.

The previous prime is 23444323237. The next prime is 23444323271. The reversal of 23444323240 is 4232344432.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 9940488804 + 13503834436 = 99702^2 + 116206^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 22542099 + ... + 22543138.

Almost surely, 2^23444323240 is an apocalyptic number.

23444323240 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

23444323240 is an abundant number, since it is smaller than the sum of its proper divisors (33363076640).

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

23444323240 is a wasteful number, since it uses less digits than its factorization.

23444323240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45085261 (or 45085257 counting only the distinct ones).

The product of its (nonzero) digits is 55296, while the sum is 31.

Adding to 23444323240 its reverse (4232344432), we get a palindrome (27676667672).

The spelling of 23444323240 in words is "twenty-three billion, four hundred forty-four million, three hundred twenty-three thousand, two hundred forty".