22049668 has 12 divisors (see below), whose sum is σ = 38636892. Its totient is φ = 11010560.

The previous prime is 22049641. The next prime is 22049681. The reversal of 22049668 is 86694022.

It can be written as a sum of positive squares in 2 ways, for example, as 14607684 + 7441984 = 3822^2 + 2728^2 .

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, 396 + ... + 6652.

It is an arithmetic number, because the mean of its divisors is an integer number (3219741).

Almost surely, 2^22049668 is an apocalyptic number.

It is an amenable number.

22049668 is a deficient number, since it is larger than the sum of its proper divisors (16587224).

22049668 is a wasteful number, since it uses less digits than its factorization.

22049668 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7142 (or 7140 counting only the distinct ones).

The product of its (nonzero) digits is 41472, while the sum is 37.

The square root of 22049668 is about 4695.7074014466. The cubic root of 22049668 is about 280.4146407740.

The spelling of 22049668 in words is "twenty-two million, forty-nine thousand, six hundred sixty-eight".