420701819 has 6 divisors (see below), whose sum is σ = 444009780. Its totient is φ = 398559276.

The previous prime is 420701807. The next prime is 420701833. The reversal of 420701819 is 918107024.

It is not a de Polignac number, because 420701819 - 2¹⁶ = 420636283 is a prime.

It is a super-2 number, since 2×420701819² = 353980041019817522, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (420701849) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 582329 + ... + 583050.

It is an arithmetic number, because the mean of its divisors is an integer number (74001630).

Almost surely, 2^420701819 is an apocalyptic number.

420701819 is a deficient number, since it is larger than the sum of its proper divisors (23307961).

420701819 is a wasteful number, since it uses less digits than its factorization.

420701819 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1165417 (or 1165398 counting only the distinct ones).

The product of its (nonzero) digits is 4032, while the sum is 32.

The square root of 420701819 is about 20511.0170152530. The cubic root of 420701819 is about 749.3041361941.

The spelling of 420701819 in words is "four hundred twenty million, seven hundred one thousand, eight hundred nineteen".