7947200140 has 36 divisors (see below), whose sum is σ = 18344245248. Its totient is φ = 2889890080.

The previous prime is 7947200111. The next prime is 7947200159. The reversal of 7947200140 is 410027497.

It is a junction number, because it is equal to n+sod(n) for n = 7947200096 and 7947200105.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1639564 + ... + 1644403.

It is an arithmetic number, because the mean of its divisors is an integer number (509562368).

Almost surely, 2^7947200140 is an apocalyptic number.

It is an amenable number.

7947200140 is an abundant number, since it is smaller than the sum of its proper divisors (10397045108).

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

7947200140 is a wasteful number, since it uses less digits than its factorization.

7947200140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3283998 (or 3283985 counting only the distinct ones).

The product of its (nonzero) digits is 14112, while the sum is 34.

The square root of 7947200140 is about 89147.0702827636. The cubic root of 7947200140 is about 1995.5902960680.

The spelling of 7947200140 in words is "seven billion, nine hundred forty-seven million, two hundred thousand, one hundred forty".