420705219 has 8 divisors (see below), whose sum is σ = 611934912. Its totient is φ = 254972840.

The previous prime is 420705211. The next prime is 420705269. The reversal of 420705219 is 912507024.

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

It is a cyclic number.

It is not a de Polignac number, because 420705219 - 2³ = 420705211 is a prime.

It is a super-2 number, since 2×420705219² = 353985762587675922, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (420705211) 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, 6374289 + ... + 6374354.

It is an arithmetic number, because the mean of its divisors is an integer number (76491864).

Almost surely, 2^420705219 is an apocalyptic number.

420705219 is a deficient number, since it is larger than the sum of its proper divisors (191229693).

420705219 is a wasteful number, since it uses less digits than its factorization.

420705219 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12748657.

The product of its (nonzero) digits is 5040, while the sum is 30.

The square root of 420705219 is about 20511.0998973726. The cubic root of 420705219 is about 749.3061547474.

The spelling of 420705219 in words is "four hundred twenty million, seven hundred five thousand, two hundred nineteen".