428119769 has 16 divisors (see below), whose sum is σ = 556968960. Its totient is φ = 319094160.

The previous prime is 428119759. The next prime is 428119781. The reversal of 428119769 is 967911824.

It is not a de Polignac number, because 428119769 - 2²⁰ = 427071193 is a prime.

It is a super-2 number, since 2×428119769² = 366573073217226722, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (428119729) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 119099 + ... + 122640.

It is an arithmetic number, because the mean of its divisors is an integer number (34810560).

Almost surely, 2^428119769 is an apocalyptic number.

It is an amenable number.

428119769 is a deficient number, since it is larger than the sum of its proper divisors (128849191).

428119769 is a wasteful number, since it uses less digits than its factorization.

428119769 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 241780.

The product of its digits is 217728, while the sum is 47.

The square root of 428119769 is about 20691.0552896656. The cubic root of 428119769 is about 753.6824932506.

The spelling of 428119769 in words is "four hundred twenty-eight million, one hundred nineteen thousand, seven hundred sixty-nine".