22050649 has 8 divisors (see below), whose sum is σ = 23389128. Its totient is φ = 20716800.

The previous prime is 22050647. The next prime is 22050671. The reversal of 22050649 is 94605022.

It can be written as a sum of positive squares in 4 ways, for example, as 2866249 + 19184400 = 1693^2 + 4380^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 22050649 - 2¹ = 22050647 is a prime.

It is a super-2 number, since 2×22050649² = 972462242642402, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22050647) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16299 + ... + 17599.

It is an arithmetic number, because the mean of its divisors is an integer number (2923641).

Almost surely, 2^22050649 is an apocalyptic number.

It is an amenable number.

22050649 is a deficient number, since it is larger than the sum of its proper divisors (1338479).

22050649 is a wasteful number, since it uses less digits than its factorization.

22050649 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2315.

The product of its (nonzero) digits is 4320, while the sum is 28.

The square root of 22050649 is about 4695.8118573895. The cubic root of 22050649 is about 280.4187993050.

The spelling of 22050649 in words is "twenty-two million, fifty thousand, six hundred forty-nine".