428664158 has 16 divisors (see below), whose sum is σ = 707192640. Its totient is φ = 193634976.

The previous prime is 428664121. The next prime is 428664169. The reversal of 428664158 is 851466824.

It is a happy number.

It is a congruent number.

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, 174173 + ... + 176616.

It is an arithmetic number, because the mean of its divisors is an integer number (44199540).

Almost surely, 2^428664158 is an apocalyptic number.

428664158 is a deficient number, since it is larger than the sum of its proper divisors (278528482).

428664158 is a wasteful number, since it uses less digits than its factorization.

428664158 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 350851.

The product of its digits is 368640, while the sum is 44.

The square root of 428664158 is about 20704.2062876122. The cubic root of 428664158 is about 754.0018140753.

The spelling of 428664158 in words is "four hundred twenty-eight million, six hundred sixty-four thousand, one hundred fifty-eight".