23442216 has 32 divisors (see below), whose sum is σ = 66978240. Its totient is φ = 6697728.

The previous prime is 23442203. The next prime is 23442217. The reversal of 23442216 is 61224432.

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

It is a nude number because it is divisible by every one of its digits.

It is not an unprimeable number, because it can be changed into a prime (23442217) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 69601 + ... + 69936.

It is an arithmetic number, because the mean of its divisors is an integer number (2093070).

Almost surely, 2^23442216 is an apocalyptic number.

It is an amenable number.

23442216 is an abundant number, since it is smaller than the sum of its proper divisors (43536024).

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

23442216 is a wasteful number, since it uses less digits than its factorization.

23442216 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 139553 (or 139549 counting only the distinct ones).

The product of its digits is 2304, while the sum is 24.

The square root of 23442216 is about 4841.7162246460. The cubic root of 23442216 is about 286.1977539195.

Adding to 23442216 its reverse (61224432), we get a palindrome (84666648).

It can be divided in two parts, 2344 and 2216, that added together give a triangular number (4560 = T₉₅).

The spelling of 23442216 in words is "twenty-three million, four hundred forty-two thousand, two hundred sixteen".