23242440440 has 16 divisors (see below), whose sum is σ = 52295491080. Its totient is φ = 9296976160.

The previous prime is 23242440439. The next prime is 23242440451. The reversal of 23242440440 is 4404424232.

It is a super-2 number, since 2×23242440440² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 290530466 + ... + 290530545.

Almost surely, 2^23242440440 is an apocalyptic number.

23242440440 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

23242440440 is an abundant number, since it is smaller than the sum of its proper divisors (29053050640).

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

23242440440 is a wasteful number, since it uses less digits than its factorization.

23242440440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 581061022 (or 581061018 counting only the distinct ones).

The product of its (nonzero) digits is 24576, while the sum is 29.

Adding to 23242440440 its reverse (4404424232), we get a palindrome (27646864672).

The spelling of 23242440440 in words is "twenty-three billion, two hundred forty-two million, four hundred forty thousand, four hundred forty".