2170842366 has 64 divisors (see below), whose sum is σ = 5457885696. Its totient is φ = 563840640.

The previous prime is 2170842287. The next prime is 2170842379. The reversal of 2170842366 is 6632480712.

It is a happy number.

2170842366 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is a hoax number, since the sum of its digits (39) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 36486 + ... + 75318.

It is an arithmetic number, because the mean of its divisors is an integer number (85279464).

Almost surely, 2^2170842366 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2170842366, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2728942848).

2170842366 is an abundant number, since it is smaller than the sum of its proper divisors (3287043330).

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

2170842366 is a wasteful number, since it uses less digits than its factorization.

2170842366 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38878 (or 38856 counting only the distinct ones).

The product of its (nonzero) digits is 96768, while the sum is 39.

The square root of 2170842366 is about 46592.2994281244. The cubic root of 2170842366 is about 1294.8200911851.

The spelling of 2170842366 in words is "two billion, one hundred seventy million, eight hundred forty-two thousand, three hundred sixty-six".