42253424 has 20 divisors (see below), whose sum is σ = 82412880. Its totient is φ = 20985600.

The previous prime is 42253417. The next prime is 42253441. The reversal of 42253424 is 42435224.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 42253393 and 42253402.

It is a congruent number.

It is an unprimeable number.

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, 6329 + ... + 11160.

It is an arithmetic number, because the mean of its divisors is an integer number (4120644).

Almost surely, 2^42253424 is an apocalyptic number.

It is an amenable number.

42253424 is a deficient number, since it is larger than the sum of its proper divisors (40159456).

42253424 is a wasteful number, since it uses less digits than its factorization.

42253424 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17648 (or 17642 counting only the distinct ones).

The product of its digits is 7680, while the sum is 26.

The square root of 42253424 is about 6500.2633792793. The cubic root of 42253424 is about 348.3003968054.

Adding to 42253424 its reverse (42435224), we get a palindrome (84688648).

The spelling of 42253424 in words is "forty-two million, two hundred fifty-three thousand, four hundred twenty-four".