22044061 has 4 divisors (see below), whose sum is σ = 23739772. Its totient is φ = 20348352.

The previous prime is 22044049. The next prime is 22044073. The reversal of 22044061 is 16044022.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (22044049) and next prime (22044073).

It can be written as a sum of positive squares in 2 ways, for example, as 4024036 + 18020025 = 2006^2 + 4245^2 .

It is a cyclic number.

It is not a de Polignac number, because 22044061 - 2¹⁵ = 22011293 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22044091) 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 3 ways as a sum of consecutive naturals, for example, 847836 + ... + 847861.

It is an arithmetic number, because the mean of its divisors is an integer number (5934943).

Almost surely, 2^22044061 is an apocalyptic number.

It is an amenable number.

22044061 is a deficient number, since it is larger than the sum of its proper divisors (1695711).

22044061 is a wasteful number, since it uses less digits than its factorization.

22044061 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1695710.

The product of its (nonzero) digits is 384, while the sum is 19.

The square root of 22044061 is about 4695.1103288421. The cubic root of 22044061 is about 280.3908699221.

Adding to 22044061 its reverse (16044022), we get a palindrome (38088083).

The spelling of 22044061 in words is "twenty-two million, forty-four thousand, sixty-one".