42251324 has 12 divisors (see below), whose sum is σ = 78289344. Its totient is φ = 19882944.

The previous prime is 42251323. The next prime is 42251351. The reversal of 42251324 is 42315224.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 42251324.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42251323) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 310604 + ... + 310739.

It is an arithmetic number, because the mean of its divisors is an integer number (6524112).

Almost surely, 2^42251324 is an apocalyptic number.

It is an amenable number.

42251324 is a deficient number, since it is larger than the sum of its proper divisors (36038020).

42251324 is a wasteful number, since it uses less digits than its factorization.

42251324 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 621364 (or 621362 counting only the distinct ones).

The product of its digits is 1920, while the sum is 23.

The square root of 42251324 is about 6500.1018453560. The cubic root of 42251324 is about 348.2946265200.

Adding to 42251324 its reverse (42315224), we get a palindrome (84566548).

The spelling of 42251324 in words is "forty-two million, two hundred fifty-one thousand, three hundred twenty-four".