23831227840 has 112 divisors (see below), whose sum is σ = 65087504064. Its totient is φ = 8141414400.

The previous prime is 23831227837. The next prime is 23831227859. The reversal of 23831227840 is 4872213832.

It is a tau number, because it is divible by the number of its divisors (112).

It is a Harshad number since it is a multiple of its sum of digits (40).

It is a junction number, because it is equal to n+sod(n) for n = 23831227793 and 23831227802.

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 15 ways as a sum of consecutive naturals, for example, 610510 + ... + 648370.

Almost surely, 2^23831227840 is an apocalyptic number.

23831227840 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 23831227840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (32543752032).

23831227840 is an abundant number, since it is smaller than the sum of its proper divisors (41256276224).

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

23831227840 is a wasteful number, since it uses less digits than its factorization.

23831227840 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38166 (or 38156 counting only the distinct ones).

The product of its (nonzero) digits is 129024, while the sum is 40.

The spelling of 23831227840 in words is "twenty-three billion, eight hundred thirty-one million, two hundred twenty-seven thousand, eight hundred forty".