2223994 has 8 divisors (see below), whose sum is σ = 3345588. Its totient is φ = 1108800.

The previous prime is 2223983. The next prime is 2224009. The reversal of 2223994 is 4993222.

It can be written as a sum of positive squares in 2 ways, for example, as 2205225 + 18769 = 1485^2 + 137^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×2223994² = 9892298624072, which contains 22 as substring.

It is an Ulam number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 607 + ... + 2194.

2^2223994 is an apocalyptic number.

2223994 is a deficient number, since it is larger than the sum of its proper divisors (1121594).

2223994 is a wasteful number, since it uses less digits than its factorization.

2223994 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3200.

The product of its digits is 7776, while the sum is 31.

The square root of 2223994 is about 1491.3061389265. The cubic root of 2223994 is about 130.5302602033.

The spelling of 2223994 in words is "two million, two hundred twenty-three thousand, nine hundred ninety-four".