42181752 has 32 divisors (see below), whose sum is σ = 106232400. Its totient is φ = 13956864.

The previous prime is 42181721. The next prime is 42181757. The reversal of 42181752 is 25718124.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42181757) 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 7 ways as a sum of consecutive naturals, for example, 3127 + ... + 9702.

Almost surely, 2^42181752 is an apocalyptic number.

It is an amenable number.

42181752 is an abundant number, since it is smaller than the sum of its proper divisors (64050648).

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

42181752 is a wasteful number, since it uses less digits than its factorization.

42181752 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12975 (or 12971 counting only the distinct ones).

The product of its digits is 4480, while the sum is 30.

The square root of 42181752 is about 6494.7480320641. The cubic root of 42181752 is about 348.1033515198.

Adding to 42181752 its reverse (25718124), we get a palindrome (67899876).

The spelling of 42181752 in words is "forty-two million, one hundred eighty-one thousand, seven hundred fifty-two".