23871120 has 160 divisors (see below), whose sum is σ = 91160832. Its totient is φ = 5031936.

The previous prime is 23871103. The next prime is 23871131. The reversal of 23871120 is 2117832.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 21294 + ... + 22386.

Almost surely, 2^23871120 is an apocalyptic number.

23871120 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 23871120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (45580416).

23871120 is an abundant number, since it is smaller than the sum of its proper divisors (67289712).

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

23871120 is a wasteful number, since it uses less digits than its factorization.

23871120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1129 (or 1123 counting only the distinct ones).

The product of its (nonzero) digits is 672, while the sum is 24.

The square root of 23871120 is about 4885.8080191510. The cubic root of 23871120 is about 287.9326617258.

Adding to 23871120 its reverse (2117832), we get a palindrome (25988952).

The spelling of 23871120 in words is "twenty-three million, eight hundred seventy-one thousand, one hundred twenty".