8424441428 has 24 divisors (see below), whose sum is σ = 15892302888. Its totient is φ = 3884414976.

The previous prime is 8424441383. The next prime is 8424441463. The reversal of 8424441428 is 8241444248.

It can be written as a sum of positive squares in 4 ways, for example, as 917605264 + 7506836164 = 30292^2 + 86642^2 .

It is a Smith number, since the sum of its digits (41) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 24701 + ... + 132132.

It is an arithmetic number, because the mean of its divisors is an integer number (662179287).

Almost surely, 2^8424441428 is an apocalyptic number.

It is an amenable number.

8424441428 is a deficient number, since it is larger than the sum of its proper divisors (7467861460).

8424441428 is a wasteful number, since it uses less digits than its factorization.

8424441428 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 157883 (or 157881 counting only the distinct ones).

The product of its digits is 262144, while the sum is 41.

The square root of 8424441428 is about 91784.7559674263. The cubic root of 8424441428 is about 2034.7624059210.

The spelling of 8424441428 in words is "eight billion, four hundred twenty-four million, four hundred forty-one thousand, four hundred twenty-eight".