23171456 has 64 divisors (see below), whose sum is σ = 57576960. Its totient is φ = 9024000.

The previous prime is 23171443. The next prime is 23171461. The reversal of 23171456 is 65417132.

It is a tau number, because it is divible by the number of its divisors (64).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8681 + ... + 11031.

It is an arithmetic number, because the mean of its divisors is an integer number (899640).

Almost surely, 2^23171456 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 23171456, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (28788480).

23171456 is an abundant number, since it is smaller than the sum of its proper divisors (34405504).

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

23171456 is a wasteful number, since it uses less digits than its factorization.

23171456 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2383 (or 2371 counting only the distinct ones).

The product of its digits is 5040, while the sum is 29.

The square root of 23171456 is about 4813.6738568374. The cubic root of 23171456 is about 285.0916131045.

Adding to 23171456 its reverse (65417132), we get a palindrome (88588588).

It can be divided in two parts, 2317 and 1456, that added together give a palindrome (3773).

The spelling of 23171456 in words is "twenty-three million, one hundred seventy-one thousand, four hundred fifty-six".