22306057 has 16 divisors (see below), whose sum is σ = 25349760. Its totient is φ = 19498752.

The previous prime is 22306051. The next prime is 22306069. The reversal of 22306057 is 75060322.

It is a cyclic number.

It is not a de Polignac number, because 22306057 - 2¹⁵ = 22273289 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22306051) 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 15 ways as a sum of consecutive naturals, for example, 16468 + ... + 17770.

It is an arithmetic number, because the mean of its divisors is an integer number (1584360).

Almost surely, 2^22306057 is an apocalyptic number.

It is an amenable number.

22306057 is a deficient number, since it is larger than the sum of its proper divisors (3043703).

22306057 is a wasteful number, since it uses less digits than its factorization.

22306057 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1392.

The product of its (nonzero) digits is 2520, while the sum is 25.

The square root of 22306057 is about 4722.9288582404. The cubic root of 22306057 is about 281.4973230566.

Adding to 22306057 its reverse (75060322), we get a palindrome (97366379).

The spelling of 22306057 in words is "twenty-two million, three hundred six thousand, fifty-seven".