421304019 has 8 divisors (see below), whose sum is σ = 561883392. Its totient is φ = 280797000.

The previous prime is 421304011. The next prime is 421304021. The reversal of 421304019 is 910403124.

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

It is not a de Polignac number, because 421304019 - 2³ = 421304011 is a prime.

It is a super-2 number, since 2×421304019² = 354994152851104722, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 421304019.

It is not an unprimeable number, because it can be changed into a prime (421304011) 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, 2607 + ... + 29144.

It is an arithmetic number, because the mean of its divisors is an integer number (70235424).

Almost surely, 2^421304019 is an apocalyptic number.

421304019 is a deficient number, since it is larger than the sum of its proper divisors (140579373).

421304019 is a wasteful number, since it uses less digits than its factorization.

421304019 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36177.

The product of its (nonzero) digits is 864, while the sum is 24.

The square root of 421304019 is about 20525.6916814026. The cubic root of 421304019 is about 749.6614881248.

The spelling of 421304019 in words is "four hundred twenty-one million, three hundred four thousand, nineteen".