428658136 has 8 divisors (see below), whose sum is σ = 803734020. Its totient is φ = 214329064.

The previous prime is 428658133. The next prime is 428658143. The reversal of 428658136 is 631856824.

It is a tau number, because it is divible by the number of its divisors (8).

It is a junction number, because it is equal to n+sod(n) for n = 428658092 and 428658101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (428658133) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26791126 + ... + 26791141.

Almost surely, 2^428658136 is an apocalyptic number.

It is an amenable number.

428658136 is a deficient number, since it is larger than the sum of its proper divisors (375075884).

428658136 is a wasteful number, since it uses less digits than its factorization.

428658136 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53582273 (or 53582269 counting only the distinct ones).

The product of its digits is 276480, while the sum is 43.

The square root of 428658136 is about 20704.0608577158. The cubic root of 428658136 is about 753.9982832458.

The spelling of 428658136 in words is "four hundred twenty-eight million, six hundred fifty-eight thousand, one hundred thirty-six".