420428119 has 4 divisors (see below), whose sum is σ = 421110144. Its totient is φ = 419746096.

The previous prime is 420428093. The next prime is 420428137. The reversal of 420428119 is 911824024.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 420428119 - 2⁹ = 420427607 is a prime.

It is a super-2 number, since 2×420428119² = 353519606491756322, 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 (420128119) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 340087 + ... + 341320.

It is an arithmetic number, because the mean of its divisors is an integer number (105277536).

Almost surely, 2^420428119 is an apocalyptic number.

420428119 is a deficient number, since it is larger than the sum of its proper divisors (682025).

420428119 is an equidigital number, since it uses as much as digits as its factorization.

420428119 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 682024.

The product of its (nonzero) digits is 4608, while the sum is 31.

The square root of 420428119 is about 20504.3439056216. The cubic root of 420428119 is about 749.1416069604.

It can be divided in two parts, 4204 and 28119, that added together give a palindrome (32323).

The spelling of 420428119 in words is "four hundred twenty million, four hundred twenty-eight thousand, one hundred nineteen".