22006885 has 8 divisors (see below), whose sum is σ = 26555256. Its totient is φ = 17507520.

The previous prime is 22006879. The next prime is 22006913. The reversal of 22006885 is 58860022.

It can be written as a sum of positive squares in 4 ways, for example, as 123201 + 21883684 = 351^2 + 4678^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 22006885 - 2¹³ = 21998693 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11254 + ... + 13063.

It is an arithmetic number, because the mean of its divisors is an integer number (3319407).

Almost surely, 2^22006885 is an apocalyptic number.

It is an amenable number.

22006885 is a deficient number, since it is larger than the sum of its proper divisors (4548371).

22006885 is a wasteful number, since it uses less digits than its factorization.

22006885 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24503.

The product of its (nonzero) digits is 7680, while the sum is 31.

The square root of 22006885 is about 4691.1496458757. The cubic root of 22006885 is about 280.2331603816.

The spelling of 22006885 in words is "twenty-two million, six thousand, eight hundred eighty-five".