23713140 has 192 divisors, whose sum is σ = 79994880. Its totient is φ = 5184000.

The previous prime is 23713111. The next prime is 23713153. The reversal of 23713140 is 4131732.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 388710 + ... + 388770.

It is an arithmetic number, because the mean of its divisors is an integer number (416640).

Almost surely, 2^23713140 is an apocalyptic number.

23713140 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 23713140, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (39997440).

23713140 is an abundant number, since it is smaller than the sum of its proper divisors (56281740).

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

23713140 is a wasteful number, since it uses less digits than its factorization.

23713140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 134 (or 132 counting only the distinct ones).

The product of its (nonzero) digits is 504, while the sum is 21.

The square root of 23713140 is about 4869.6139477375. The cubic root of 23713140 is about 287.2960721464.

Adding to 23713140 its reverse (4131732), we get a palindrome (27844872).

The spelling of 23713140 in words is "twenty-three million, seven hundred thirteen thousand, one hundred forty".