421346919 has 8 divisors (see below), whose sum is σ = 642052480. Its totient is φ = 240769656.

The previous prime is 421346917. The next prime is 421346929. The reversal of 421346919 is 919643124.

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

It is not a de Polignac number, because 421346919 - 2¹ = 421346917 is a prime.

It is a super-2 number, since 2×421346919² = 355066452301585122, 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 (421346917) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10032049 + ... + 10032090.

It is an arithmetic number, because the mean of its divisors is an integer number (80256560).

Almost surely, 2^421346919 is an apocalyptic number.

421346919 is a deficient number, since it is larger than the sum of its proper divisors (220705561).

421346919 is a wasteful number, since it uses less digits than its factorization.

421346919 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20064149.

The product of its digits is 46656, while the sum is 39.

The square root of 421346919 is about 20526.7366865754. The cubic root of 421346919 is about 749.6869324476.

The spelling of 421346919 in words is "four hundred twenty-one million, three hundred forty-six thousand, nine hundred nineteen".