42032831 has 8 divisors (see below), whose sum is σ = 43545600. Its totient is φ = 40543360.

The previous prime is 42032779. The next prime is 42032849. The reversal of 42032831 is 13823024.

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

It is a cyclic number.

It is not a de Polignac number, because 42032831 - 2¹⁰ = 42031807 is a prime.

It is a super-2 number, since 2×42032831² = 3533517763749122, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 42032797 and 42032806.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42032231) 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, 2111 + ... + 9408.

It is an arithmetic number, because the mean of its divisors is an integer number (5443200).

Almost surely, 2^42032831 is an apocalyptic number.

42032831 is a gapful number since it is divisible by the number (41) formed by its first and last digit.

42032831 is a deficient number, since it is larger than the sum of its proper divisors (1512769).

42032831 is a wasteful number, since it uses less digits than its factorization.

42032831 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11649.

The product of its (nonzero) digits is 1152, while the sum is 23.

The square root of 42032831 is about 6483.2731702436. The cubic root of 42032831 is about 347.6932134631.

Adding to 42032831 its reverse (13823024), we get a palindrome (55855855).

The spelling of 42032831 in words is "forty-two million, thirty-two thousand, eight hundred thirty-one".