22061685 has 16 divisors (see below), whose sum is σ = 35539200. Its totient is φ = 11686080.

The previous prime is 22061681. The next prime is 22061701. The reversal of 22061685 is 58616022.

It is not a de Polignac number, because 22061685 - 2² = 22061681 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22061681) 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, 2701 + ... + 7170.

It is an arithmetic number, because the mean of its divisors is an integer number (2221200).

Almost surely, 2^22061685 is an apocalyptic number.

It is an amenable number.

22061685 is a deficient number, since it is larger than the sum of its proper divisors (13477515).

22061685 is a wasteful number, since it uses less digits than its factorization.

22061685 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10028.

The product of its (nonzero) digits is 5760, while the sum is 30.

The square root of 22061685 is about 4696.9868000666. The cubic root of 22061685 is about 280.4655732228.

The spelling of 22061685 in words is "twenty-two million, sixty-one thousand, six hundred eighty-five".