24221530 has 32 divisors (see below), whose sum is σ = 46376064. Its totient is φ = 9087936.

The previous prime is 24221503. The next prime is 24221537. The reversal of 24221530 is 3512242.

It is a junction number, because it is equal to n+sod(n) for n = 24221498 and 24221507.

It is not an unprimeable number, because it can be changed into a prime (24221537) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11197 + ... + 13183.

It is an arithmetic number, because the mean of its divisors is an integer number (1449252).

Almost surely, 2^24221530 is an apocalyptic number.

24221530 is a deficient number, since it is larger than the sum of its proper divisors (22154534).

24221530 is a wasteful number, since it uses less digits than its factorization.

24221530 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2070.

The product of its (nonzero) digits is 480, while the sum is 19.

The square root of 24221530 is about 4921.5373614349. The cubic root of 24221530 is about 289.3347015988.

Adding to 24221530 its reverse (3512242), we get a palindrome (27733772).

The spelling of 24221530 in words is "twenty-four million, two hundred twenty-one thousand, five hundred thirty".