24242155 has 16 divisors (see below), whose sum is σ = 34320384. Its totient is φ = 16086240.

The previous prime is 24242137. The next prime is 24242159. The reversal of 24242155 is 55124242.

It is not a de Polignac number, because 24242155 - 2¹⁹ = 23717867 is a prime.

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 15 ways as a sum of consecutive naturals, for example, 10087 + ... + 12256.

It is an arithmetic number, because the mean of its divisors is an integer number (2145024).

Almost surely, 2^24242155 is an apocalyptic number.

24242155 is a deficient number, since it is larger than the sum of its proper divisors (10078229).

24242155 is a wasteful number, since it uses less digits than its factorization.

24242155 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22386.

The product of its digits is 3200, while the sum is 25.

The square root of 24242155 is about 4923.6322974000. The cubic root of 24242155 is about 289.4168025947.

Adding to 24242155 its reverse (55124242), we get a palindrome (79366397).

The spelling of 24242155 in words is "twenty-four million, two hundred forty-two thousand, one hundred fifty-five".