24540213 has 8 divisors (see below), whose sum is σ = 33604768. Its totient is φ = 15917904.

The previous prime is 24540193. The next prime is 24540277. The reversal of 24540213 is 31204542.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 24540213 - 2²¹ = 22443061 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 24540213.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (24540613) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 110431 + ... + 110652.

It is an arithmetic number, because the mean of its divisors is an integer number (4200596).

Almost surely, 2^24540213 is an apocalyptic number.

It is an amenable number.

24540213 is a deficient number, since it is larger than the sum of its proper divisors (9064555).

24540213 is a wasteful number, since it uses less digits than its factorization.

24540213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 221123.

The product of its (nonzero) digits is 960, while the sum is 21.

The square root of 24540213 is about 4953.8079292601. The cubic root of 24540213 is about 290.5981036966.

Adding to 24540213 its reverse (31204542), we get a palindrome (55744755).

It can be divided in two parts, 24540 and 213, that added together give a triangular number (24753 = T₂₂₂).

The spelling of 24540213 in words is "twenty-four million, five hundred forty thousand, two hundred thirteen".