23404505140 has 48 divisors (see below), whose sum is σ = 53985697920. Its totient is φ = 8483460480.

The previous prime is 23404505077. The next prime is 23404505167. The reversal of 23404505140 is 4150540432.

It is a junction number, because it is equal to n+sod(n) for n = 23404505099 and 23404505108.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1330191 + ... + 1347670.

It is an arithmetic number, because the mean of its divisors is an integer number (1124702040).

Almost surely, 2^23404505140 is an apocalyptic number.

23404505140 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

23404505140 is an abundant number, since it is smaller than the sum of its proper divisors (30581192780).

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

23404505140 is a wasteful number, since it uses less digits than its factorization.

23404505140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2677912 (or 2677910 counting only the distinct ones).

The product of its (nonzero) digits is 9600, while the sum is 28.

The spelling of 23404505140 in words is "twenty-three billion, four hundred four million, five hundred five thousand, one hundred forty".