42345252 has 36 divisors (see below), whose sum is σ = 108553536. Its totient is φ = 13915440.

The previous prime is 42345223. The next prime is 42345263. The reversal of 42345252 is 25254324.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (36).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5728 + ... + 10839.

It is an arithmetic number, because the mean of its divisors is an integer number (3015376).

Almost surely, 2^42345252 is an apocalyptic number.

It is an amenable number.

42345252 is an abundant number, since it is smaller than the sum of its proper divisors (66208284).

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

42345252 is a wasteful number, since it uses less digits than its factorization.

42345252 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16648 (or 16643 counting only the distinct ones).

The product of its digits is 9600, while the sum is 27.

The square root of 42345252 is about 6507.3229518751. The cubic root of 42345252 is about 348.5525309049.

Adding to 42345252 its reverse (25254324), we get a palindrome (67599576).

The spelling of 42345252 in words is "forty-two million, three hundred forty-five thousand, two hundred fifty-two".