42251132 has 36 divisors (see below), whose sum is σ = 93835224. Its totient is φ = 16460640.

The previous prime is 42251119. The next prime is 42251149. The reversal of 42251132 is 23115224.

42251132 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 7643 + ... + 11954.

It is an arithmetic number, because the mean of its divisors is an integer number (2606534).

Almost surely, 2^42251132 is an apocalyptic number.

It is an amenable number.

42251132 is an abundant number, since it is smaller than the sum of its proper divisors (51584092).

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

42251132 is a wasteful number, since it uses less digits than its factorization.

42251132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19626 (or 19617 counting only the distinct ones).

The product of its digits is 480, while the sum is 20.

The square root of 42251132 is about 6500.0870763398. The cubic root of 42251132 is about 348.2940989415.

Adding to 42251132 its reverse (23115224), we get a palindrome (65366356).

The spelling of 42251132 in words is "forty-two million, two hundred fifty-one thousand, one hundred thirty-two".