24222740 has 24 divisors (see below), whose sum is σ = 50962632. Its totient is φ = 9671040.

The previous prime is 24222733. The next prime is 24222763. The reversal of 24222740 is 4722242.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 5317636 + 18905104 = 2306^2 + 4348^2 .

It is a super-2 number, since 2×24222740² = 1173482266215200, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16850 + ... + 18230.

It is an arithmetic number, because the mean of its divisors is an integer number (2123443).

Almost surely, 2^24222740 is an apocalyptic number.

24222740 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

24222740 is an abundant number, since it is smaller than the sum of its proper divisors (26739892).

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

24222740 is a wasteful number, since it uses less digits than its factorization.

24222740 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2267 (or 2265 counting only the distinct ones).

The product of its (nonzero) digits is 1792, while the sum is 23.

The square root of 24222740 is about 4921.6602889675. The cubic root of 24222740 is about 289.3395194772.

Adding to 24222740 its reverse (4722242), we get a palindrome (28944982).

The spelling of 24222740 in words is "twenty-four million, two hundred twenty-two thousand, seven hundred forty".