24216228 has 36 divisors (see below), whose sum is σ = 64815660. Its totient is φ = 7597056.

The previous prime is 24216223. The next prime is 24216253. The reversal of 24216228 is 82261242.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 16990884 + 7225344 = 4122^2 + 2688^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is not an unprimeable number, because it can be changed into a prime (24216221) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 19173 + ... + 20396.

It is an arithmetic number, because the mean of its divisors is an integer number (1800435).

Almost surely, 2^24216228 is an apocalyptic number.

It is an amenable number.

24216228 is an abundant number, since it is smaller than the sum of its proper divisors (40599432).

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

24216228 is a wasteful number, since it uses less digits than its factorization.

24216228 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39596 (or 39591 counting only the distinct ones).

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

The square root of 24216228 is about 4920.9986791301. The cubic root of 24216228 is about 289.3135886394.

It can be divided in two parts, 2421 and 6228, that added together give a square (8649 = 93²).

The spelling of 24216228 in words is "twenty-four million, two hundred sixteen thousand, two hundred twenty-eight".