8438958828 has 18 divisors (see below), whose sum is σ = 21331812684. Its totient is φ = 2812986264.

The previous prime is 8438958799. The next prime is 8438958833. The reversal of 8438958828 is 8288598348.

8438958828 is a `hidden beast` number, since 8 + 43 + 8 + 9 + 588 + 2 + 8 = 666.

It is a tau number, because it is divible by the number of its divisors (18).

It is a super-2 number, since 2×8438958828² (a number of 21 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 117207726 + ... + 117207797.

Almost surely, 2^8438958828 is an apocalyptic number.

It is an amenable number.

8438958828 is an abundant number, since it is smaller than the sum of its proper divisors (12892853856).

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

8438958828 is a wasteful number, since it uses less digits than its factorization.

8438958828 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 234415533 (or 234415528 counting only the distinct ones).

The product of its digits is 35389440, while the sum is 63.

The square root of 8438958828 is about 91863.8058649869. The cubic root of 8438958828 is about 2035.9305351196.

The spelling of 8438958828 in words is "eight billion, four hundred thirty-eight million, nine hundred fifty-eight thousand, eight hundred twenty-eight".