22221486 has 32 divisors (see below), whose sum is σ = 56436480. Its totient is φ = 6348888.

The previous prime is 22221461. The next prime is 22221487. The reversal of 22221486 is 68412222.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22221487) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 29016 + ... + 29771.

It is an arithmetic number, because the mean of its divisors is an integer number (1763640).

Almost surely, 2^22221486 is an apocalyptic number.

22221486 is an abundant number, since it is smaller than the sum of its proper divisors (34214994).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

22221486 is a wasteful number, since it uses less digits than its factorization.

22221486 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 58805 (or 58799 counting only the distinct ones).

The product of its digits is 3072, while the sum is 27.

The square root of 22221486 is about 4713.9671191047. The cubic root of 22221486 is about 281.1411169636.

The spelling of 22221486 in words is "twenty-two million, two hundred twenty-one thousand, four hundred eighty-six".