428899268 has 24 divisors (see below), whose sum is σ = 862253952. Its totient is φ = 182859264.

The previous prime is 428899259. The next prime is 428899271. The reversal of 428899268 is 862998824.

It is a Smith number, since the sum of its digits (56) coincides with the sum of the digits of its prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 34280 + ... + 45087.

It is an arithmetic number, because the mean of its divisors is an integer number (35927248).

Almost surely, 2^428899268 is an apocalyptic number.

It is an amenable number.

428899268 is an abundant number, since it is smaller than the sum of its proper divisors (433354684).

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

428899268 is a wasteful number, since it uses less digits than its factorization.

428899268 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 79571 (or 79569 counting only the distinct ones).

The product of its digits is 3981312, while the sum is 56.

The square root of 428899268 is about 20709.8833410524. The cubic root of 428899268 is about 754.1396383396.

The spelling of 428899268 in words is "four hundred twenty-eight million, eight hundred ninety-nine thousand, two hundred sixty-eight".