22247020 has 12 divisors (see below), whose sum is σ = 46718784. Its totient is φ = 8898800.

The previous prime is 22246997. The next prime is 22247021. The reversal of 22247020 is 2074222.

It is not an unprimeable number, because it can be changed into a prime (22247021) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 556156 + ... + 556195.

It is an arithmetic number, because the mean of its divisors is an integer number (3893232).

Almost surely, 2^22247020 is an apocalyptic number.

22247020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22247020 is an abundant number, since it is smaller than the sum of its proper divisors (24471764).

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

22247020 is a wasteful number, since it uses less digits than its factorization.

22247020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1112360 (or 1112358 counting only the distinct ones).

The product of its (nonzero) digits is 448, while the sum is 19.

The square root of 22247020 is about 4716.6746760827. The cubic root of 22247020 is about 281.2487591715.

The spelling of 22247020 in words is "twenty-two million, two hundred forty-seven thousand, twenty".