7147172940 has 48 divisors (see below), whose sum is σ = 20043905280. Its totient is φ = 1902882240.

The previous prime is 7147172933. The next prime is 7147172947. The reversal of 7147172940 is 492717417.

It is an interprime number because it is at equal distance from previous prime (7147172933) and next prime (7147172947).

It is a junction number, because it is equal to n+sod(n) for n = 7147172892 and 7147172901.

It is not an unprimeable number, because it can be changed into a prime (7147172947) 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, 56530 + ... + 132249.

It is an arithmetic number, because the mean of its divisors is an integer number (417581360).

Almost surely, 2^7147172940 is an apocalyptic number.

It is an amenable number.

7147172940 is an abundant number, since it is smaller than the sum of its proper divisors (12896732340).

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

7147172940 is a wasteful number, since it uses less digits than its factorization.

7147172940 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 189422 (or 189420 counting only the distinct ones).

The product of its (nonzero) digits is 98784, while the sum is 42.

The square root of 7147172940 is about 84540.9542174679. The cubic root of 7147172940 is about 1926.2445824641.

The spelling of 7147172940 in words is "seven billion, one hundred forty-seven million, one hundred seventy-two thousand, nine hundred forty".