2071172730 has 96 divisors (see below), whose sum is σ = 5785359552. Its totient is φ = 472552960.

The previous prime is 2071172689. The next prime is 2071172759. The reversal of 2071172730 is 372711702.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 44929 + ... + 78491.

It is an arithmetic number, because the mean of its divisors is an integer number (60264162).

Almost surely, 2^2071172730 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2071172730, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2892679776).

2071172730 is an abundant number, since it is smaller than the sum of its proper divisors (3714186822).

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

2071172730 is a wasteful number, since it uses less digits than its factorization.

2071172730 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33612 (or 33601 counting only the distinct ones).

The product of its (nonzero) digits is 4116, while the sum is 30.

The square root of 2071172730 is about 45510.1387605004. The cubic root of 2071172730 is about 1274.6925271645.

The spelling of 2071172730 in words is "two billion, seventy-one million, one hundred seventy-two thousand, seven hundred thirty".