42822831 has 8 divisors (see below), whose sum is σ = 57249280. Its totient is φ = 28472472.

The previous prime is 42822817. The next prime is 42822839. The reversal of 42822831 is 13822824.

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

It is not a de Polignac number, because 42822831 - 2⁵ = 42822799 is a prime.

It is a super-2 number, since 2×42822831² = 3667589709709122, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42822839) 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, 17695 + ... + 19968.

It is an arithmetic number, because the mean of its divisors is an integer number (7156160).

Almost surely, 2^42822831 is an apocalyptic number.

42822831 is a deficient number, since it is larger than the sum of its proper divisors (14426449).

42822831 is a wasteful number, since it uses less digits than its factorization.

42822831 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38045.

The product of its digits is 6144, while the sum is 30.

The square root of 42822831 is about 6543.9155709713. The cubic root of 42822831 is about 349.8579859224.

The spelling of 42822831 in words is "forty-two million, eight hundred twenty-two thousand, eight hundred thirty-one".