22000349 has 4 divisors (see below), whose sum is σ = 25143264. Its totient is φ = 18857436.

The previous prime is 22000343. The next prime is 22000361. The reversal of 22000349 is 94300022.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 22000349 - 2¹⁶ = 21934813 is a prime.

It is a super-2 number, since 2×22000349² = 968030712243602, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 22000349.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22000343) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1571447 + ... + 1571460.

It is an arithmetic number, because the mean of its divisors is an integer number (6285816).

Almost surely, 2^22000349 is an apocalyptic number.

It is an amenable number.

22000349 is a deficient number, since it is larger than the sum of its proper divisors (3142915).

22000349 is an equidigital number, since it uses as much as digits as its factorization.

22000349 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3142914.

The product of its (nonzero) digits is 432, while the sum is 20.

The square root of 22000349 is about 4690.4529632009. The cubic root of 22000349 is about 280.2054147421.

The spelling of 22000349 in words is "twenty-two million, three hundred forty-nine", and thus it is an aban number.