8193527440 has 40 divisors (see below), whose sum is σ = 21771374400. Its totient is φ = 2809209216.

The previous prime is 8193527431. The next prime is 8193527443. The reversal of 8193527440 is 447253918.

It is a tau number, because it is divible by the number of its divisors (40).

It is not an unprimeable number, because it can be changed into a prime (8193527443) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7315090 + ... + 7316209.

It is an arithmetic number, because the mean of its divisors is an integer number (544284360).

Almost surely, 2^8193527440 is an apocalyptic number.

8193527440 is a gapful number since it is divisible by the number (80) formed by its first and last digit.

It is an amenable number.

8193527440 is an abundant number, since it is smaller than the sum of its proper divisors (13577846960).

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

8193527440 is a wasteful number, since it uses less digits than its factorization.

8193527440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14631319 (or 14631313 counting only the distinct ones).

The product of its (nonzero) digits is 241920, while the sum is 43.

The square root of 8193527440 is about 90518.1055921963. The cubic root of 8193527440 is about 2015.9989620071.

The spelling of 8193527440 in words is "eight billion, one hundred ninety-three million, five hundred twenty-seven thousand, four hundred forty".