22041291 has 8 divisors (see below), whose sum is σ = 30666240. Its totient is φ = 14055272.

The previous prime is 22041287. The next prime is 22041293. The reversal of 22041291 is 19214022.

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 22041291 - 2² = 22041287 is a prime.

It is not an unprimeable number, because it can be changed into a prime (22041293) 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 7 ways as a sum of consecutive naturals, for example, 159651 + ... + 159788.

It is an arithmetic number, because the mean of its divisors is an integer number (3833280).

Almost surely, 2^22041291 is an apocalyptic number.

22041291 is a deficient number, since it is larger than the sum of its proper divisors (8624949).

22041291 is a wasteful number, since it uses less digits than its factorization.

22041291 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 319465.

The product of its (nonzero) digits is 288, while the sum is 21.

The square root of 22041291 is about 4694.8153318315. The cubic root of 22041291 is about 280.3791250316.

The spelling of 22041291 in words is "twenty-two million, forty-one thousand, two hundred ninety-one".