23025530440 has 48 divisors (see below), whose sum is σ = 56945383740. Its totient is φ = 8372918400.

The previous prime is 23025530419. The next prime is 23025530443. The reversal of 23025530440 is 4403552032.

It can be written as a sum of positive squares in 2 ways, for example, as 21876184836 + 1149345604 = 147906^2 + 33902^2 .

It is a junction number, because it is equal to n+sod(n) for n = 23025530399 and 23025530408.

It is not an unprimeable number, because it can be changed into a prime (23025530443) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2373831 + ... + 2383510.

Almost surely, 2^23025530440 is an apocalyptic number.

23025530440 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

23025530440 is an abundant number, since it is smaller than the sum of its proper divisors (33919853300).

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

23025530440 is a wasteful number, since it uses less digits than its factorization.

23025530440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4757374 (or 4757359 counting only the distinct ones).

The product of its (nonzero) digits is 14400, while the sum is 28.

The spelling of 23025530440 in words is "twenty-three billion, twenty-five million, five hundred thirty thousand, four hundred forty".