23043444040 has 32 divisors (see below), whose sum is σ = 51856200000. Its totient is φ = 9215875264.

The previous prime is 23043444031. The next prime is 23043444049. The reversal of 23043444040 is 4044434032.

It is an interprime number because it is at equal distance from previous prime (23043444031) and next prime (23043444049).

It is a super-2 number, since 2×23043444040² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (23043444049) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 220311 + ... + 307609.

It is an arithmetic number, because the mean of its divisors is an integer number (1620506250).

Almost surely, 2^23043444040 is an apocalyptic number.

23043444040 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

23043444040 is an abundant number, since it is smaller than the sum of its proper divisors (28812755960).

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

23043444040 is a wasteful number, since it uses less digits than its factorization.

23043444040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 93909 (or 93905 counting only the distinct ones).

The product of its (nonzero) digits is 18432, while the sum is 28.

Adding to 23043444040 its reverse (4044434032), we get a palindrome (27087878072).

The spelling of 23043444040 in words is "twenty-three billion, forty-three million, four hundred forty-four thousand, forty".