23471136 has 72 divisors (see below), whose sum is σ = 71891820. Its totient is φ = 7220736.

The previous prime is 23471131. The next prime is 23471167. The reversal of 23471136 is 63117432.

It can be written as a sum of positive squares in 2 ways, for example, as 21566736 + 1904400 = 4644^2 + 1380^2 .

It is a tau number, because it is divible by the number of its divisors (72).

It is not an unprimeable number, because it can be changed into a prime (23471131) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 610 + ... + 6878.

Almost surely, 2^23471136 is an apocalyptic number.

23471136 is a gapful number since it is divisible by the number (26) 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 23471136, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (35945910).

23471136 is an abundant number, since it is smaller than the sum of its proper divisors (48420684).

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

23471136 is a wasteful number, since it uses less digits than its factorization.

23471136 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6298 (or 6287 counting only the distinct ones).

The product of its digits is 3024, while the sum is 27.

The square root of 23471136 is about 4844.7018484113. The cubic root of 23471136 is about 286.3153969179.

Adding to 23471136 its reverse (63117432), we get a palindrome (86588568).

The spelling of 23471136 in words is "twenty-three million, four hundred seventy-one thousand, one hundred thirty-six".