421322829 has 8 divisors (see below), whose sum is σ = 579885312. Its totient is φ = 271821120.

The previous prime is 421322821. The next prime is 421322831. The reversal of 421322829 is 928223124.

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

It is not a de Polignac number, because 421322829 - 2³ = 421322821 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 421322829.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (421322821) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2265084 + ... + 2265269.

It is an arithmetic number, because the mean of its divisors is an integer number (72485664).

Almost surely, 2^421322829 is an apocalyptic number.

It is an amenable number.

421322829 is a deficient number, since it is larger than the sum of its proper divisors (158562483).

421322829 is a wasteful number, since it uses less digits than its factorization.

421322829 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4530387.

The product of its digits is 13824, while the sum is 33.

The square root of 421322829 is about 20526.1498825279. The cubic root of 421322829 is about 749.6726446943.

The spelling of 421322829 in words is "four hundred twenty-one million, three hundred twenty-two thousand, eight hundred twenty-nine".