4405994 has 4 divisors (see below), whose sum is σ = 6608994. Its totient is φ = 2202996.

The previous prime is 4405991. The next prime is 4406021. The reversal of 4405994 is 4995044.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 3330625 + 1075369 = 1825^2 + 1037^2 .

It is not an unprimeable number, because it can be changed into a prime (4405991) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1101497 + ... + 1101500.

Almost surely, 2^4405994 is an apocalyptic number.

4405994 is a deficient number, since it is larger than the sum of its proper divisors (2203000).

4405994 is a wasteful number, since it uses less digits than its factorization.

4405994 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2202999.

The product of its (nonzero) digits is 25920, while the sum is 35.

The square root of 4405994 is about 2099.0459737700. The cubic root of 4405994 is about 163.9386296252.

The spelling of 4405994 in words is "four million, four hundred five thousand, nine hundred ninety-four".