2221698 has 16 divisors (see below), whose sum is σ = 4459680. Its totient is φ = 737856.

The previous prime is 2221673. The next prime is 2221699. The reversal of 2221698 is 8961222.

It is not an unprimeable number, because it can be changed into a prime (2221699) 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, 1786 + ... + 2762.

It is an arithmetic number, because the mean of its divisors is an integer number (278730).

2^2221698 is an apocalyptic number.

2221698 is an abundant number, since it is smaller than the sum of its proper divisors (2237982).

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

2221698 is a wasteful number, since it uses less digits than its factorization.

2221698 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1361.

The product of its digits is 3456, while the sum is 30.

The square root of 2221698 is about 1490.5361451505. The cubic root of 2221698 is about 130.4853259289.

The spelling of 2221698 in words is "two million, two hundred twenty-one thousand, six hundred ninety-eight".