24215142 has 16 divisors (see below), whose sum is σ = 55348992. Its totient is φ = 6918600.

The previous prime is 24215141. The next prime is 24215153. The reversal of 24215142 is 24151242.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (24215141) 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, 288234 + ... + 288317.

It is an arithmetic number, because the mean of its divisors is an integer number (3459312).

Almost surely, 2^24215142 is an apocalyptic number.

24215142 is an abundant number, since it is smaller than the sum of its proper divisors (31133850).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

24215142 is a wasteful number, since it uses less digits than its factorization.

24215142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 576563.

The product of its digits is 640, while the sum is 21.

The square root of 24215142 is about 4920.8883344372. Note that the first 3 decimals coincide. The cubic root of 24215142 is about 289.3092637262.

Adding to 24215142 its reverse (24151242), we get a palindrome (48366384).

The spelling of 24215142 in words is "twenty-four million, two hundred fifteen thousand, one hundred forty-two".