22522146 has 8 divisors (see below), whose sum is σ = 45044304. Its totient is φ = 7507380.

The previous prime is 22522141. The next prime is 22522169. The reversal of 22522146 is 64122522.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

22522146 is an admirable number.

It is not an unprimeable number, because it can be changed into a prime (22522141) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1876840 + ... + 1876851.

It is an arithmetic number, because the mean of its divisors is an integer number (5630538).

Almost surely, 2^22522146 is an apocalyptic number.

22522146 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

22522146 is a wasteful number, since it uses less digits than its factorization.

22522146 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3753696.

The product of its digits is 1920, while the sum is 24.

The square root of 22522146 is about 4745.7503094874. The cubic root of 22522146 is about 282.4034013319.

Adding to 22522146 its reverse (64122522), we get a palindrome (86644668).

The spelling of 22522146 in words is "twenty-two million, five hundred twenty-two thousand, one hundred forty-six".