23885040440 has 32 divisors (see below), whose sum is σ = 54622352160. Its totient is φ = 9397392000.

The previous prime is 23885040427. The next prime is 23885040463. The reversal of 23885040440 is 4404058832.

It is a junction number, because it is equal to n+sod(n) for n = 23885040394 and 23885040403.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4892036 + ... + 4896915.

It is an arithmetic number, because the mean of its divisors is an integer number (1706948505).

Almost surely, 2^23885040440 is an apocalyptic number.

23885040440 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

23885040440 is an abundant number, since it is smaller than the sum of its proper divisors (30737311720).

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

23885040440 is a wasteful number, since it uses less digits than its factorization.

23885040440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9789023 (or 9789019 counting only the distinct ones).

The product of its (nonzero) digits is 122880, while the sum is 38.

The spelling of 23885040440 in words is "twenty-three billion, eight hundred eighty-five million, forty thousand, four hundred forty".