8140940880 has 80 divisors (see below), whose sum is σ = 25418581440. Its totient is φ = 2155290624.

The previous prime is 8140940851. The next prime is 8140940903. The reversal of 8140940880 is 880490418.

It is a tau number, because it is divible by the number of its divisors (80).

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 88657 + ... + 155376.

It is an arithmetic number, because the mean of its divisors is an integer number (317732268).

Almost surely, 2^8140940880 is an apocalyptic number.

8140940880 is a gapful number since it is divisible by the number (80) formed by its first and last digit.

It is an amenable number.

8140940880 is an abundant number, since it is smaller than the sum of its proper divisors (17277640560).

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

8140940880 is a wasteful number, since it uses less digits than its factorization.

8140940880 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 244188 (or 244182 counting only the distinct ones).

The product of its (nonzero) digits is 73728, while the sum is 42.

The square root of 8140940880 is about 90227.1626507229. The cubic root of 8140940880 is about 2011.6767672128.

The spelling of 8140940880 in words is "eight billion, one hundred forty million, nine hundred forty thousand, eight hundred eighty".