22290651 has 6 divisors (see below), whose sum is σ = 32197620. Its totient is φ = 14860428.

The previous prime is 22290617. The next prime is 22290661. The reversal of 22290651 is 15609222.

22290651 is a `hidden beast` number, since 2 + 2 + 2 + 9 + 0 + 651 = 666.

It is not a de Polignac number, because 22290651 - 2¹¹ = 22288603 is a prime.

It is not an unprimeable number, because it can be changed into a prime (22290601) 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 5 ways as a sum of consecutive naturals, for example, 1238361 + ... + 1238378.

It is an arithmetic number, because the mean of its divisors is an integer number (5366270).

Almost surely, 2^22290651 is an apocalyptic number.

22290651 is a deficient number, since it is larger than the sum of its proper divisors (9906969).

22290651 is a wasteful number, since it uses less digits than its factorization.

22290651 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2476745 (or 2476742 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 27.

The square root of 22290651 is about 4721.2975970595. The cubic root of 22290651 is about 281.4325014022.

Adding to 22290651 its reverse (15609222), we get a palindrome (37899873).

The spelling of 22290651 in words is "twenty-two million, two hundred ninety thousand, six hundred fifty-one".