22004785 has 8 divisors (see below), whose sum is σ = 28806336. Its totient is φ = 16003440.

The previous prime is 22004779. The next prime is 22004791. The reversal of 22004785 is 58740022.

It is an interprime number because it is at equal distance from previous prime (22004779) and next prime (22004791).

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

It is not a de Polignac number, because 22004785 - 2¹¹ = 22002737 is a prime.

It is a Duffinian 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, 199989 + ... + 200098.

It is an arithmetic number, because the mean of its divisors is an integer number (3600792).

Almost surely, 2^22004785 is an apocalyptic number.

It is an amenable number.

22004785 is a deficient number, since it is larger than the sum of its proper divisors (6801551).

22004785 is a wasteful number, since it uses less digits than its factorization.

22004785 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 400103.

The product of its (nonzero) digits is 4480, while the sum is 28.

The square root of 22004785 is about 4690.9258148046. The cubic root of 22004785 is about 280.2242463780.

The spelling of 22004785 in words is "twenty-two million, four thousand, seven hundred eighty-five".