2170875730 has 16 divisors (see below), whose sum is σ = 3922107480. Its totient is φ = 865121152.

The previous prime is 2170875709. The next prime is 2170875731. The reversal of 2170875730 is 375780712.

It can be written as a sum of positive squares in 4 ways, for example, as 799136361 + 1371739369 = 28269^2 + 37037^2 .

It is not an unprimeable number, because it can be changed into a prime (2170875731) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 400819 + ... + 406198.

Almost surely, 2^2170875730 is an apocalyptic number.

2170875730 is a deficient number, since it is larger than the sum of its proper divisors (1751231750).

2170875730 is a wasteful number, since it uses less digits than its factorization.

2170875730 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 807293.

The product of its (nonzero) digits is 82320, while the sum is 40.

The square root of 2170875730 is about 46592.6574687472. The cubic root of 2170875730 is about 1294.8267245788.

The spelling of 2170875730 in words is "two billion, one hundred seventy million, eight hundred seventy-five thousand, seven hundred thirty".