24894013 has 4 divisors (see below), whose sum is σ = 25114428. Its totient is φ = 24673600.

The previous prime is 24893989. The next prime is 24894017. The reversal of 24894013 is 31049842.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 31049842 = 2 ⋅15524921.

It can be written as a sum of positive squares in 2 ways, for example, as 7279204 + 17614809 = 2698^2 + 4197^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-24894013 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 (24894017) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 110038 + ... + 110263.

It is an arithmetic number, because the mean of its divisors is an integer number (6278607).

Almost surely, 2^24894013 is an apocalyptic number.

It is an amenable number.

24894013 is a deficient number, since it is larger than the sum of its proper divisors (220415).

24894013 is a wasteful number, since it uses less digits than its factorization.

24894013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 220414.

The product of its (nonzero) digits is 6912, while the sum is 31.

The square root of 24894013 is about 4989.3900428810. The cubic root of 24894013 is about 291.9879780188.

The spelling of 24894013 in words is "twenty-four million, eight hundred ninety-four thousand, thirteen".