22247380 has 12 divisors (see below), whose sum is σ = 46719540. Its totient is φ = 8898944.

The previous prime is 22247363. The next prime is 22247387. The reversal of 22247380 is 8374222.

It can be written as a sum of positive squares in 2 ways, for example, as 7639696 + 14607684 = 2764^2 + 3822^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22247387) 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, 556165 + ... + 556204.

It is an arithmetic number, because the mean of its divisors is an integer number (3893295).

Almost surely, 2^22247380 is an apocalyptic number.

22247380 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22247380 is an abundant number, since it is smaller than the sum of its proper divisors (24472160).

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

22247380 is a wasteful number, since it uses less digits than its factorization.

22247380 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1112378 (or 1112376 counting only the distinct ones).

The product of its (nonzero) digits is 5376, while the sum is 28.

The square root of 22247380 is about 4716.7128384077. The cubic root of 22247380 is about 281.2502762137.

It can be divided in two parts, 2224 and 7380, that added together give a square (9604 = 98²).

The spelling of 22247380 in words is "twenty-two million, two hundred forty-seven thousand, three hundred eighty".