7003995840 has 168 divisors, whose sum is σ = 25358963760. Its totient is φ = 1769416704.

The previous prime is 7003995833. The next prime is 7003995853. The reversal of 7003995840 is 485993007.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 9279 + ... + 118718.

Almost surely, 2^7003995840 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 7003995840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (12679481880).

7003995840 is an abundant number, since it is smaller than the sum of its proper divisors (18354967920).

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

7003995840 is a wasteful number, since it uses less digits than its factorization.

7003995840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 128039 (or 128026 counting only the distinct ones).

The product of its (nonzero) digits is 272160, while the sum is 45.

The square root of 7003995840 is about 83689.8789579720. The cubic root of 7003995840 is about 1913.2951024370.

The spelling of 7003995840 in words is "seven billion, three million, nine hundred ninety-five thousand, eight hundred forty".