22229649 has 12 divisors (see below), whose sum is σ = 34579636. Its totient is φ = 13679712.

The previous prime is 22229633. The next prime is 22229651. The reversal of 22229649 is 94692222.

It is a happy number.

22229649 is a `hidden beast` number, since 2 + 2 + 2 + 2 + 9 + 649 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 1979649 + 20250000 = 1407^2 + 4500^2 .

It is not a de Polignac number, because 22229649 - 2⁴ = 22229633 is a prime.

It is not an unprimeable number, because it can be changed into a prime (22229609) 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 11 ways as a sum of consecutive naturals, for example, 94882 + ... + 95115.

Almost surely, 2^22229649 is an apocalyptic number.

It is an amenable number.

22229649 is a deficient number, since it is larger than the sum of its proper divisors (12349987).

22229649 is a wasteful number, since it uses less digits than its factorization.

22229649 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 190016 (or 190013 counting only the distinct ones).

The product of its digits is 31104, while the sum is 36.

The square root of 22229649 is about 4714.8328708449. The cubic root of 22229649 is about 281.1755382137.

The spelling of 22229649 in words is "twenty-two million, two hundred twenty-nine thousand, six hundred forty-nine".