22534216 has 8 divisors (see below), whose sum is σ = 42251670. Its totient is φ = 11267104.

The previous prime is 22534157. The next prime is 22534217. The reversal of 22534216 is 61243522.

It can be written as a sum of positive squares in only one way, i.e., 19096900 + 3437316 = 4370^2 + 1854^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is not an unprimeable number, because it can be changed into a prime (22534217) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1408381 + ... + 1408396.

Almost surely, 2^22534216 is an apocalyptic number.

It is an amenable number.

22534216 is a deficient number, since it is larger than the sum of its proper divisors (19717454).

22534216 is a wasteful number, since it uses less digits than its factorization.

22534216 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2816783 (or 2816779 counting only the distinct ones).

The product of its digits is 2880, while the sum is 25.

The square root of 22534216 is about 4747.0218031941. The cubic root of 22534216 is about 282.4538405799.

Adding to 22534216 its reverse (61243522), we get a palindrome (83777738).

The spelling of 22534216 in words is "twenty-two million, five hundred thirty-four thousand, two hundred sixteen".