428672258 has 32 divisors (see below), whose sum is σ = 769426560. Its totient is φ = 175230720.

The previous prime is 428672191. The next prime is 428672267. The reversal of 428672258 is 852276824.

It is a Smith number, since the sum of its digits (44) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 27338 + ... + 40058.

It is an arithmetic number, because the mean of its divisors is an integer number (24044580).

Almost surely, 2^428672258 is an apocalyptic number.

428672258 is a deficient number, since it is larger than the sum of its proper divisors (340754302).

428672258 is a wasteful number, since it uses less digits than its factorization.

428672258 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12842.

The product of its digits is 430080, while the sum is 44.

The square root of 428672258 is about 20704.4018991131. The cubic root of 428672258 is about 754.0065632293.

The spelling of 428672258 in words is "four hundred twenty-eight million, six hundred seventy-two thousand, two hundred fifty-eight".