2170356630 has 64 divisors (see below), whose sum is σ = 5740035840. Its totient is φ = 521813376.

The previous prime is 2170356623. The next prime is 2170356641. The reversal of 2170356630 is 366530712.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 2170356591 and 2170356600.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 47940 + ... + 81479.

It is an arithmetic number, because the mean of its divisors is an integer number (89688060).

Almost surely, 2^2170356630 is an apocalyptic number.

2170356630 is an abundant number, since it is smaller than the sum of its proper divisors (3569679210).

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

2170356630 is a wasteful number, since it uses less digits than its factorization.

2170356630 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 129485.

The product of its (nonzero) digits is 22680, while the sum is 33.

The square root of 2170356630 is about 46587.0865154712. The cubic root of 2170356630 is about 1294.7235099905.

The spelling of 2170356630 in words is "two billion, one hundred seventy million, three hundred fifty-six thousand, six hundred thirty".