24990013 has 8 divisors (see below), whose sum is σ = 25376120. Its totient is φ = 24606720.

The previous prime is 24989971. The next prime is 24990037. The reversal of 24990013 is 31009942.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 5391684 + 19598329 = 2322^2 + 4427^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 24990013 - 2⁹ = 24989501 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (24990913) 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, 22843 + ... + 23911.

It is an arithmetic number, because the mean of its divisors is an integer number (3172015).

Almost surely, 2^24990013 is an apocalyptic number.

It is an amenable number.

24990013 is a deficient number, since it is larger than the sum of its proper divisors (386107).

24990013 is a wasteful number, since it uses less digits than its factorization.

24990013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1407.

The product of its (nonzero) digits is 1944, while the sum is 28.

The square root of 24990013 is about 4999.0012002399. The cubic root of 24990013 is about 292.3628324152.

Adding to 24990013 its reverse (31009942), we get a palindrome (55999955).

The spelling of 24990013 in words is "twenty-four million, nine hundred ninety thousand, thirteen".