8628444432 has 40 divisors (see below), whose sum is σ = 24766832480. Its totient is φ = 2876148000.

The previous prime is 8628444431. The next prime is 8628444479. The reversal of 8628444432 is 2344448268.

It is a super-2 number, since 2×8628444432² (a number of 21 digits) contains 22 as substring.

It is a nude number because it is divisible by every one of its digits.

It is not an unprimeable number, because it can be changed into a prime (8628444431) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9986194 + ... + 9987057.

It is an arithmetic number, because the mean of its divisors is an integer number (619170812).

Almost surely, 2^8628444432 is an apocalyptic number.

It is an amenable number.

8628444432 is an abundant number, since it is smaller than the sum of its proper divisors (16138388048).

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

8628444432 is a wasteful number, since it uses less digits than its factorization.

8628444432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19973268 (or 19973256 counting only the distinct ones).

The product of its digits is 1179648, while the sum is 45.

The square root of 8628444432 is about 92889.4204524929. The cubic root of 8628444432 is about 2051.0559249424.

The spelling of 8628444432 in words is "eight billion, six hundred twenty-eight million, four hundred forty-four thousand, four hundred thirty-two".