22520806 has 16 divisors (see below), whose sum is σ = 42117120. Its totient is φ = 8774280.

The previous prime is 22520803. The next prime is 22520807. The reversal of 22520806 is 60802522.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22520803) 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, 72966 + ... + 73273.

It is an arithmetic number, because the mean of its divisors is an integer number (2632320).

Almost surely, 2^22520806 is an apocalyptic number.

22520806 is a deficient number, since it is larger than the sum of its proper divisors (19596314).

22520806 is a wasteful number, since it uses less digits than its factorization.

22520806 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 146259.

The product of its (nonzero) digits is 1920, while the sum is 25.

The square root of 22520806 is about 4745.6091284471. The cubic root of 22520806 is about 282.3978005029.

The spelling of 22520806 in words is "twenty-two million, five hundred twenty thousand, eight hundred six".