23920449432 has 32 divisors (see below), whose sum is σ = 65237590080. Its totient is φ = 7248620960.

The previous prime is 23920449389. The next prime is 23920449439. The reversal of 23920449432 is 23494402932.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23920449439) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 45303618 + ... + 45304145.

It is an arithmetic number, because the mean of its divisors is an integer number (2038674690).

Almost surely, 2^23920449432 is an apocalyptic number.

23920449432 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

23920449432 is an abundant number, since it is smaller than the sum of its proper divisors (41317140648).

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

23920449432 is a wasteful number, since it uses less digits than its factorization.

23920449432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 90607783 (or 90607779 counting only the distinct ones).

The product of its (nonzero) digits is 373248, while the sum is 42.

The spelling of 23920449432 in words is "twenty-three billion, nine hundred twenty million, four hundred forty-nine thousand, four hundred thirty-two".