23842339920 has 360 divisors, whose sum is σ = 92710066176. Its totient is φ = 5378752512.

The previous prime is 23842339919. The next prime is 23842339931. The reversal of 23842339920 is 2993324832.

23842339920 is a `hidden beast` number, since 238 + 4 + 2 + 3 + 399 + 20 = 666.

It is a tau number, because it is divible by the number of its divisors (360).

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 123535344 + ... + 123535536.

Almost surely, 2^23842339920 is an apocalyptic number.

23842339920 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 23842339920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (46355033088).

23842339920 is an abundant number, since it is smaller than the sum of its proper divisors (68867726256).

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

23842339920 is a wasteful number, since it uses less digits than its factorization.

23842339920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 539 (or 337 counting only the distinct ones).

The product of its (nonzero) digits is 559872, while the sum is 45.

The spelling of 23842339920 in words is "twenty-three billion, eight hundred forty-two million, three hundred thirty-nine thousand, nine hundred twenty".