23863837940 has 24 divisors (see below), whose sum is σ = 50128734600. Its totient is φ = 9542739968.

The previous prime is 23863837939. The next prime is 23863837957. The reversal of 23863837940 is 4973836832.

It can be written as a sum of positive squares in 4 ways, for example, as 358042084 + 23505795856 = 18922^2 + 153316^2 .

It is a super-2 number, since 2×23863837940² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 103997 + ... + 241956.

It is an arithmetic number, because the mean of its divisors is an integer number (2088697275).

Almost surely, 2^23863837940 is an apocalyptic number.

23863837940 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

23863837940 is an abundant number, since it is smaller than the sum of its proper divisors (26264896660).

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

23863837940 is a wasteful number, since it uses less digits than its factorization.

23863837940 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 349411 (or 349409 counting only the distinct ones).

The product of its (nonzero) digits is 5225472, while the sum is 53.

The spelling of 23863837940 in words is "twenty-three billion, eight hundred sixty-three million, eight hundred thirty-seven thousand, nine hundred forty".