2194722 has 32 divisors (see below), whose sum is σ = 4939200. Its totient is φ = 722304.

The previous prime is 2194721. The next prime is 2194723. The reversal of 2194722 is 2274912.

It is an interprime number because it is at equal distance from previous prime (2194721) and next prime (2194723).

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (2194721) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5029 + ... + 5447.

It is an arithmetic number, because the mean of its divisors is an integer number (154350).

2^2194722 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2194722, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2469600).

2194722 is an abundant number, since it is smaller than the sum of its proper divisors (2744478).

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

2194722 is a wasteful number, since it uses less digits than its factorization.

2194722 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 527 (or 521 counting only the distinct ones).

The product of its digits is 2016, while the sum is 27.

The square root of 2194722 is about 1481.4594155764. The cubic root of 2194722 is about 129.9550534954.

It can be divided in two parts, 2194 and 722, that added together give a square (2916 = 54²).

The spelling of 2194722 in words is "two million, one hundred ninety-four thousand, seven hundred twenty-two".