421062831 has 36 divisors (see below), whose sum is σ = 712693800. Its totient is φ = 238841568.

The previous prime is 421062821. The next prime is 421062833. The reversal of 421062831 is 138260124.

421062831 is a `hidden beast` number, since 4 + 2 + 1 + 0 + 628 + 31 = 666.

It is not a de Polignac number, because 421062831 - 2⁵ = 421062799 is a prime.

It is a super-2 number, since 2×421062831² = 354587815299469122, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 421062795 and 421062804.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (421062833) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 57865 + ... + 64733.

It is an arithmetic number, because the mean of its divisors is an integer number (19797050).

Almost surely, 2^421062831 is an apocalyptic number.

421062831 is a deficient number, since it is larger than the sum of its proper divisors (291630969).

421062831 is a wasteful number, since it uses less digits than its factorization.

421062831 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7028 (or 7018 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 27.

The square root of 421062831 is about 20519.8155693466. The cubic root of 421062831 is about 749.5184054885.

The spelling of 421062831 in words is "four hundred twenty-one million, sixty-two thousand, eight hundred thirty-one".