2221594 has 24 divisors (see below), whose sum is σ = 3744468. Its totient is φ = 984960.

The previous prime is 2221589. The next prime is 2221631. The reversal of 2221594 is 4951222.

It can be written as a sum of positive squares in 2 ways, for example, as 2140369 + 81225 = 1463^2 + 285^2 .

It is an Ulam number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 12184 + ... + 12364.

2^2221594 is an apocalyptic number.

2221594 is a deficient number, since it is larger than the sum of its proper divisors (1522874).

2221594 is a wasteful number, since it uses less digits than its factorization.

2221594 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 238 (or 219 counting only the distinct ones).

The product of its digits is 1440, while the sum is 25.

The square root of 2221594 is about 1490.5012579666. The cubic root of 2221594 is about 130.4832898457.

The spelling of 2221594 in words is "two million, two hundred twenty-one thousand, five hundred ninety-four".