8438963428 has 12 divisors (see below), whose sum is σ = 16877926912. Its totient is φ = 3616698600.

The previous prime is 8438963417. The next prime is 8438963471. The reversal of 8438963428 is 8243698348.

8438963428 is an admirable number.

It is a super-2 number, since 2×8438963428² (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 3 ways as a sum of consecutive naturals, for example, 150695748 + ... + 150695803.

Almost surely, 2^8438963428 is an apocalyptic number.

It is an amenable number.

8438963428 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

8438963428 is a wasteful number, since it uses less digits than its factorization.

8438963428 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 301391562 (or 301391560 counting only the distinct ones).

The product of its digits is 7962624, while the sum is 55.

The square root of 8438963428 is about 91863.8309020476. The cubic root of 8438963428 is about 2035.9309050419.

The spelling of 8438963428 in words is "eight billion, four hundred thirty-eight million, nine hundred sixty-three thousand, four hundred twenty-eight".