8019032640 has 112 divisors (see below), whose sum is σ = 25506761280. Its totient is φ = 2134517760.

The previous prime is 8019032629. The next prime is 8019032641. The reversal of 8019032640 is 462309108.

It is not an unprimeable number, because it can be changed into a prime (8019032641) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 540846 + ... + 555474.

It is an arithmetic number, because the mean of its divisors is an integer number (227738940).

Almost surely, 2^8019032640 is an apocalyptic number.

8019032640 is a gapful number since it is divisible by the number (80) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 8019032640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (12753380640).

8019032640 is an abundant number, since it is smaller than the sum of its proper divisors (17487728640).

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

8019032640 is a wasteful number, since it uses less digits than its factorization.

8019032640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15220 (or 15210 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 33.

The square root of 8019032640 is about 89549.0515862675. The cubic root of 8019032640 is about 2001.5847972105.

The spelling of 8019032640 in words is "eight billion, nineteen million, thirty-two thousand, six hundred forty".