22481866 has 32 divisors (see below), whose sum is σ = 38413440. Its totient is φ = 9777600.

The previous prime is 22481831. The next prime is 22481887. The reversal of 22481866 is 66818422.

It is a Harshad number since it is a multiple of its sum of digits (37).

It is a pancake number, because a pancake can be divided into 22481866 parts by 6705 straight cuts.

It is an unprimeable number.

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 in 15 ways as a sum of consecutive naturals, for example, 57600 + ... + 57988.

It is an arithmetic number, because the mean of its divisors is an integer number (1200420).

Almost surely, 2^22481866 is an apocalyptic number.

22481866 is a deficient number, since it is larger than the sum of its proper divisors (15931574).

22481866 is a wasteful number, since it uses less digits than its factorization.

22481866 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 510.

The product of its digits is 36864, while the sum is 37.

The square root of 22481866 is about 4741.5046135167. The cubic root of 22481866 is about 282.2349449582.

It can be divided in two parts, 2248 and 1866, that added together give a palindrome (4114).

The spelling of 22481866 in words is "twenty-two million, four hundred eighty-one thousand, eight hundred sixty-six".