22057361 has 4 divisors (see below), whose sum is σ = 22066800. Its totient is φ = 22047924.

The previous prime is 22057351. The next prime is 22057367. The reversal of 22057361 is 16375022.

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, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 16375022 = 2 ⋅8187511.

It is a cyclic number.

It is not a de Polignac number, because 22057361 - 2¹⁸ = 21795217 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 22057361.

It is not an unprimeable number, because it can be changed into a prime (22057367) 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, 1670 + ... + 6848.

It is an arithmetic number, because the mean of its divisors is an integer number (5516700).

Almost surely, 2^22057361 is an apocalyptic number.

It is an amenable number.

22057361 is a deficient number, since it is larger than the sum of its proper divisors (9439).

22057361 is an equidigital number, since it uses as much as digits as its factorization.

22057361 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9438.

The product of its (nonzero) digits is 2520, while the sum is 26.

The square root of 22057361 is about 4696.5264824123. The cubic root of 22057361 is about 280.4472486573.

The spelling of 22057361 in words is "twenty-two million, fifty-seven thousand, three hundred sixty-one".