23192405440 has 28 divisors (see below), whose sum is σ = 55226916216. Its totient is φ = 9276962048.

The previous prime is 23192405417. The next prime is 23192405443. The reversal of 23192405440 is 4450429132.

It is a junction number, because it is equal to n+sod(n) for n = 23192405396 and 23192405405.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23192405443) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 36237814 + ... + 36238453.

Almost surely, 2^23192405440 is an apocalyptic number.

23192405440 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

23192405440 is an abundant number, since it is smaller than the sum of its proper divisors (32034510776).

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

23192405440 is an equidigital number, since it uses as much as digits as its factorization.

23192405440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72476284 (or 72476274 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 34.

The spelling of 23192405440 in words is "twenty-three billion, one hundred ninety-two million, four hundred five thousand, four hundred forty".