428128058 has 4 divisors (see below), whose sum is σ = 642192090. Its totient is φ = 214064028.

The previous prime is 428128037. The next prime is 428128061. The reversal of 428128058 is 850821824.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 381928849 + 46199209 = 19543^2 + 6797^2 .

It is a super-3 number, since 3×428128058³ (a number of 27 digits) contains 333 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 107032013 + ... + 107032016.

Almost surely, 2^428128058 is an apocalyptic number.

428128058 is a deficient number, since it is larger than the sum of its proper divisors (214064032).

428128058 is a wasteful number, since it uses less digits than its factorization.

428128058 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 214064031.

The product of its (nonzero) digits is 40960, while the sum is 38.

The square root of 428128058 is about 20691.2555926411. The cubic root of 428128058 is about 753.6873573364.

The spelling of 428128058 in words is "four hundred twenty-eight million, one hundred twenty-eight thousand, fifty-eight".