22440806 has 4 divisors (see below), whose sum is σ = 33661212. Its totient is φ = 11220402.

The previous prime is 22440763. The next prime is 22440841. The reversal of 22440806 is 60804422.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5610200 + ... + 5610203.

It is an arithmetic number, because the mean of its divisors is an integer number (8415303).

Almost surely, 2^22440806 is an apocalyptic number.

22440806 is a deficient number, since it is larger than the sum of its proper divisors (11220406).

22440806 is a wasteful number, since it uses less digits than its factorization.

22440806 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11220405.

The product of its (nonzero) digits is 3072, while the sum is 26.

The square root of 22440806 is about 4737.1727855336. The cubic root of 22440806 is about 282.0630192978.

The spelling of 22440806 in words is "twenty-two million, four hundred forty thousand, eight hundred six".