2221734 has 16 divisors (see below), whose sum is σ = 4460400. Its totient is φ = 737760.

The previous prime is 2221733. The next prime is 2221741. The reversal of 2221734 is 4371222.

2221734 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×2221734² = 9872203933512, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 2221734.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2221733) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1564 + ... + 2624.

It is an arithmetic number, because the mean of its divisors is an integer number (278775).

2^2221734 is an apocalyptic number.

2221734 is an abundant number, since it is smaller than the sum of its proper divisors (2238666).

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

2221734 is a wasteful number, since it uses less digits than its factorization.

2221734 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1415.

The product of its digits is 672, while the sum is 21.

The square root of 2221734 is about 1490.5482212931. The cubic root of 2221734 is about 130.4860307121.

Adding to 2221734 its reverse (4371222), we get a palindrome (6592956).

The spelling of 2221734 in words is "two million, two hundred twenty-one thousand, seven hundred thirty-four".