2221394 has 16 divisors (see below), whose sum is σ = 3848256. Its totient is φ = 942000.

The previous prime is 2221391. The next prime is 2221399. The reversal of 2221394 is 4931222.

It is not an unprimeable number, because it can be changed into a prime (2221391) 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, 629 + ... + 2199.

It is an arithmetic number, because the mean of its divisors is an integer number (240516).

2^2221394 is an apocalyptic number.

2221394 is a deficient number, since it is larger than the sum of its proper divisors (1626862).

2221394 is a wasteful number, since it uses less digits than its factorization.

2221394 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1681.

The product of its digits is 864, while the sum is 23.

The square root of 2221394 is about 1490.4341649332. The cubic root of 2221394 is about 130.4793741226.

The spelling of 2221394 in words is "two million, two hundred twenty-one thousand, three hundred ninety-four".