8239522428 has 36 divisors (see below), whose sum is σ = 20837438440. Its totient is φ = 2745220896.

The previous prime is 8239522409. The next prime is 8239522429. The reversal of 8239522428 is 8242259328.

8239522428 is a `hidden beast` number, since 82 + 3 + 9 + 522 + 42 + 8 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8239522429) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 25926 + ... + 130962.

Almost surely, 2^8239522428 is an apocalyptic number.

It is an amenable number.

8239522428 is an abundant number, since it is smaller than the sum of its proper divisors (12597916012).

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

8239522428 is a wasteful number, since it uses less digits than its factorization.

8239522428 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 107226 (or 107221 counting only the distinct ones).

The product of its digits is 552960, while the sum is 45.

The square root of 8239522428 is about 90771.8151630780. The cubic root of 8239522428 is about 2019.7642462503.

The spelling of 8239522428 in words is "eight billion, two hundred thirty-nine million, five hundred twenty-two thousand, four hundred twenty-eight".