22522402 has 8 divisors (see below), whose sum is σ = 38609856. Its totient is φ = 9652452.

The previous prime is 22522363. The next prime is 22522427. The reversal of 22522402 is 20422522.

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

It is a self number, because there is not a number n which added to its sum of digits gives 22522402.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 804358 + ... + 804385.

It is an arithmetic number, because the mean of its divisors is an integer number (4826232).

Almost surely, 2^22522402 is an apocalyptic number.

22522402 is a deficient number, since it is larger than the sum of its proper divisors (16087454).

22522402 is a wasteful number, since it uses less digits than its factorization.

22522402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1608752.

The product of its (nonzero) digits is 640, while the sum is 19.

The square root of 22522402 is about 4745.7772809098. Note that the first 3 decimals coincide. The cubic root of 22522402 is about 282.4044713157.

Adding to 22522402 its reverse (20422522), we get a palindrome (42944924).

The spelling of 22522402 in words is "twenty-two million, five hundred twenty-two thousand, four hundred two".