20222845 has 8 divisors (see below), whose sum is σ = 24459264. Its totient is φ = 16050384.

The previous prime is 20222837. The next prime is 20222849. The reversal of 20222845 is 54822202.

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

It is a cyclic number.

It is not a de Polignac number, because 20222845 - 2³ = 20222837 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20222849) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15289 + ... + 16558.

It is an arithmetic number, because the mean of its divisors is an integer number (3057408).

Almost surely, 2^20222845 is an apocalyptic number.

It is an amenable number.

20222845 is a deficient number, since it is larger than the sum of its proper divisors (4236419).

20222845 is a wasteful number, since it uses less digits than its factorization.

20222845 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31979.

The product of its (nonzero) digits is 2560, while the sum is 25.

The square root of 20222845 is about 4496.9817655846. The cubic root of 20222845 is about 272.4461976096.

The spelling of 20222845 in words is "twenty million, two hundred twenty-two thousand, eight hundred forty-five".