8242772428 has 48 divisors (see below), whose sum is σ = 16379112960. Its totient is φ = 3595233600.

The previous prime is 8242772423. The next prime is 8242772431.

8242772428 is nontrivially palindromic in base 10.

It is not an unprimeable number, because it can be changed into a prime (8242772423) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 188173 + ... + 227803.

It is an arithmetic number, because the mean of its divisors is an integer number (341231520).

Almost surely, 2^8242772428 is an apocalyptic number.

It is an amenable number.

8242772428 is a deficient number, since it is larger than the sum of its proper divisors (8136340532).

8242772428 is a wasteful number, since it uses less digits than its factorization.

8242772428 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39838 (or 39836 counting only the distinct ones).

The product of its digits is 802816, while the sum is 46.

The square root of 8242772428 is about 90789.7154307689. The cubic root of 8242772428 is about 2020.0297701720.

The spelling of 8242772428 in words is "eight billion, two hundred forty-two million, seven hundred seventy-two thousand, four hundred twenty-eight".