24242157 has 12 divisors (see below), whose sum is σ = 36859680. Its totient is φ = 15310728.

The previous prime is 24242137. The next prime is 24242159. The reversal of 24242157 is 75124242.

It is not a de Polignac number, because 24242157 - 2²⁰ = 23193581 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 24242157.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (24242159) 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 11 ways as a sum of consecutive naturals, for example, 70713 + ... + 71054.

It is an arithmetic number, because the mean of its divisors is an integer number (3071640).

Almost surely, 2^24242157 is an apocalyptic number.

It is an amenable number.

24242157 is a deficient number, since it is larger than the sum of its proper divisors (12617523).

24242157 is a wasteful number, since it uses less digits than its factorization.

24242157 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 141792 (or 141789 counting only the distinct ones).

The product of its digits is 4480, while the sum is 27.

The square root of 24242157 is about 4923.6325005020. The cubic root of 24242157 is about 289.4168105537.

Adding to 24242157 its reverse (75124242), we get a palindrome (99366399).

The spelling of 24242157 in words is "twenty-four million, two hundred forty-two thousand, one hundred fifty-seven".