2221494 has 32 divisors (see below), whose sum is σ = 4910976. Its totient is φ = 664320.

The previous prime is 2221459. The next prime is 2221507. The reversal of 2221494 is 4941222.

It is an Ulam number.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6229 + ... + 6575.

It is an arithmetic number, because the mean of its divisors is an integer number (153468).

2^2221494 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2221494, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2455488).

2221494 is an abundant number, since it is smaller than the sum of its proper divisors (2689482).

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

2221494 is a wasteful number, since it uses less digits than its factorization.

2221494 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 460.

The product of its digits is 1152, while the sum is 24.

The square root of 2221494 is about 1490.4677118274. The cubic root of 2221494 is about 130.4813320135.

The spelling of 2221494 in words is "two million, two hundred twenty-one thousand, four hundred ninety-four".