2170422 has 16 divisors (see below), whose sum is σ = 4823280. Its totient is φ = 723456.

The previous prime is 2170411. The next prime is 2170423. The reversal of 2170422 is 2240712.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 2170395 and 2170404.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2170423) 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, 20043 + ... + 20150.

It is an arithmetic number, because the mean of its divisors is an integer number (301455).

2^2170422 is an apocalyptic number.

2170422 is an abundant number, since it is smaller than the sum of its proper divisors (2652858).

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

2170422 is a wasteful number, since it uses less digits than its factorization.

2170422 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40204 (or 40198 counting only the distinct ones).

The product of its (nonzero) digits is 224, while the sum is 18.

The square root of 2170422 is about 1473.2352154357. The cubic root of 2170422 is about 129.4736508657.

The spelling of 2170422 in words is "two million, one hundred seventy thousand, four hundred twenty-two".