22290452 has 12 divisors (see below), whose sum is σ = 39058656. Its totient is φ = 11130840.

The previous prime is 22290449. The next prime is 22290461. The reversal of 22290452 is 25409222.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 377 + ... + 6687.

It is an arithmetic number, because the mean of its divisors is an integer number (3254888).

Almost surely, 2^22290452 is an apocalyptic number.

It is an amenable number.

22290452 is a deficient number, since it is larger than the sum of its proper divisors (16768204).

22290452 is a wasteful number, since it uses less digits than its factorization.

22290452 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7198 (or 7196 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 26.

The square root of 22290452 is about 4721.2765222978. The cubic root of 22290452 is about 281.4316639026.

Adding to 22290452 its reverse (25409222), we get a palindrome (47699674).

The spelling of 22290452 in words is "twenty-two million, two hundred ninety thousand, four hundred fifty-two".