23471040 has 112 divisors (see below), whose sum is σ = 77833728. Its totient is φ = 5981184.

The previous prime is 23471027. The next prime is 23471047. The reversal of 23471040 is 4017432.

It is a junction number, because it is equal to n+sod(n) for n = 23470998 and 23471016.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23471047) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 21549 + ... + 22611.

It is an arithmetic number, because the mean of its divisors is an integer number (694944).

Almost surely, 2^23471040 is an apocalyptic number.

23471040 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 23471040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (38916864).

23471040 is an abundant number, since it is smaller than the sum of its proper divisors (54362688).

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

23471040 is a wasteful number, since it uses less digits than its factorization.

23471040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1106 (or 1096 counting only the distinct ones).

The product of its (nonzero) digits is 672, while the sum is 21.

The square root of 23471040 is about 4844.6919406707. The cubic root of 23471040 is about 286.3150065616.

Adding to 23471040 its reverse (4017432), we get a palindrome (27488472).

The spelling of 23471040 in words is "twenty-three million, four hundred seventy-one thousand, forty".