428119986 has 32 divisors (see below), whose sum is σ = 984233088. Its totient is φ = 121610880.

The previous prime is 428119981. The next prime is 428120023. The reversal of 428119986 is 689911824.

It is a Smith number, since the sum of its digits (48) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (428119981) 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, 22195 + ... + 36726.

It is an arithmetic number, because the mean of its divisors is an integer number (30757284).

Almost surely, 2^428119986 is an apocalyptic number.

428119986 is an abundant number, since it is smaller than the sum of its proper divisors (556113102).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

428119986 is a wasteful number, since it uses less digits than its factorization.

428119986 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 59106.

The product of its digits is 248832, while the sum is 48.

The square root of 428119986 is about 20691.0605334768. The cubic root of 428119986 is about 753.6826205896.

The spelling of 428119986 in words is "four hundred twenty-eight million, one hundred nineteen thousand, nine hundred eighty-six".