8667448428 has 48 divisors (see below), whose sum is σ = 20951532000. Its totient is φ = 2785509888.

The previous prime is 8667448411. The next prime is 8667448477. The reversal of 8667448428 is 8248447668.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 229168 + ... + 264296.

It is an arithmetic number, because the mean of its divisors is an integer number (436490250).

Almost surely, 2^8667448428 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 8667448428, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (10475766000).

8667448428 is an abundant number, since it is smaller than the sum of its proper divisors (12284083572).

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

8667448428 is a wasteful number, since it uses less digits than its factorization.

8667448428 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35874 (or 35872 counting only the distinct ones).

The product of its digits is 16515072, while the sum is 57.

The square root of 8667448428 is about 93099.1322623364. The cubic root of 8667448428 is about 2054.1418089450.

The spelling of 8667448428 in words is "eight billion, six hundred sixty-seven million, four hundred forty-eight thousand, four hundred twenty-eight".