22241740 has 12 divisors (see below), whose sum is σ = 46707696. Its totient is φ = 8896688.

The previous prime is 22241731. The next prime is 22241749. The reversal of 22241740 is 4714222.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (22241731) and next prime (22241749).

It is not an unprimeable number, because it can be changed into a prime (22241749) 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, 556024 + ... + 556063.

It is an arithmetic number, because the mean of its divisors is an integer number (3892308).

Almost surely, 2^22241740 is an apocalyptic number.

22241740 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22241740 is an abundant number, since it is smaller than the sum of its proper divisors (24465956).

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

22241740 is a wasteful number, since it uses less digits than its factorization.

22241740 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1112096 (or 1112094 counting only the distinct ones).

The product of its (nonzero) digits is 896, while the sum is 22.

The square root of 22241740 is about 4716.1149265047. The cubic root of 22241740 is about 281.2265073381.

Adding to 22241740 its reverse (4714222), we get a palindrome (26955962).

The spelling of 22241740 in words is "twenty-two million, two hundred forty-one thousand, seven hundred forty".