22481806 has 4 divisors (see below), whose sum is σ = 33722712. Its totient is φ = 11240902.

The previous prime is 22481801. The next prime is 22481813. The reversal of 22481806 is 60818422.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22481801) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5620450 + ... + 5620453.

It is an arithmetic number, because the mean of its divisors is an integer number (8430678).

Almost surely, 2^22481806 is an apocalyptic number.

22481806 is a deficient number, since it is larger than the sum of its proper divisors (11240906).

22481806 is a wasteful number, since it uses less digits than its factorization.

22481806 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11240905.

The product of its (nonzero) digits is 6144, while the sum is 31.

The square root of 22481806 is about 4741.4982864069. The cubic root of 22481806 is about 282.2346938801.

The spelling of 22481806 in words is "twenty-two million, four hundred eighty-one thousand, eight hundred six".