24498989 has 4 divisors (see below), whose sum is σ = 25940124. Its totient is φ = 23057856.

The previous prime is 24498973. The next prime is 24499001. The reversal of 24498989 is 98989442.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 20160100 + 4338889 = 4490^2 + 2083^2 .

It is a cyclic number.

It is not a de Polignac number, because 24498989 - 2⁴ = 24498973 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 24498989.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (24498389) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 720542 + ... + 720575.

It is an arithmetic number, because the mean of its divisors is an integer number (6485031).

Almost surely, 2^24498989 is an apocalyptic number.

It is an amenable number.

24498989 is a deficient number, since it is larger than the sum of its proper divisors (1441135).

24498989 is a wasteful number, since it uses less digits than its factorization.

24498989 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1441134.

The product of its digits is 1492992, while the sum is 53.

The square root of 24498989 is about 4949.6453408300. The cubic root of 24498989 is about 290.4352916012.

The spelling of 24498989 in words is "twenty-four million, four hundred ninety-eight thousand, nine hundred eighty-nine".