22702225 has 48 divisors (see below), whose sum is σ = 36747648. Its totient is φ = 13501440.

The previous prime is 22702223. The next prime is 22702231. The reversal of 22702225 is 52220722.

It is a happy number.

It is not a de Polignac number, because 22702225 - 2¹ = 22702223 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 22702196 and 22702205.

It is not an unprimeable number, because it can be changed into a prime (22702223) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 38382 + ... + 38968.

It is an arithmetic number, because the mean of its divisors is an integer number (765576).

Almost surely, 2^22702225 is an apocalyptic number.

22702225 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

22702225 is a deficient number, since it is larger than the sum of its proper divisors (14045423).

22702225 is a wasteful number, since it uses less digits than its factorization.

22702225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 634 (or 629 counting only the distinct ones).

The product of its (nonzero) digits is 1120, while the sum is 22.

The square root of 22702225 is about 4764.6851942180. The cubic root of 22702225 is about 283.1540696111.

Adding to 22702225 its reverse (52220722), we get a palindrome (74922947).

The spelling of 22702225 in words is "twenty-two million, seven hundred two thousand, two hundred twenty-five".