42132831 has 8 divisors (see below), whose sum is σ = 60498480. Its totient is φ = 25927872.

The previous prime is 42132829. The next prime is 42132847. The reversal of 42132831 is 13823124.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 42132831 - 2¹ = 42132829 is a prime.

It is a super-2 number, since 2×42132831² = 3550350896149122, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42132031) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 540126 + ... + 540203.

It is an arithmetic number, because the mean of its divisors is an integer number (7562310).

Almost surely, 2^42132831 is an apocalyptic number.

42132831 is a deficient number, since it is larger than the sum of its proper divisors (18365649).

42132831 is a wasteful number, since it uses less digits than its factorization.

42132831 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1080345.

The product of its digits is 1152, while the sum is 24.

The square root of 42132831 is about 6490.9807425381. The cubic root of 42132831 is about 347.9687265462.

Adding to 42132831 its reverse (13823124), we get a palindrome (55955955).

The spelling of 42132831 in words is "forty-two million, one hundred thirty-two thousand, eight hundred thirty-one".