4491436 has 12 divisors (see below), whose sum is σ = 8043112. Its totient is φ = 2193408.

The previous prime is 4491419. The next prime is 4491439. The reversal of 4491436 is 6341944.

It is a plaindrome in base 16.

It is a junction number, because it is equal to n+sod(n) for n = 4491398 and 4491407.

It is not an unprimeable number, because it can be changed into a prime (4491439) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12885 + ... + 13228.

Almost surely, 2^4491436 is an apocalyptic number.

It is an amenable number.

4491436 is a deficient number, since it is larger than the sum of its proper divisors (3551676).

4491436 is a wasteful number, since it uses less digits than its factorization.

4491436 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26160 (or 26158 counting only the distinct ones).

The product of its digits is 10368, while the sum is 31.

The square root of 4491436 is about 2119.3008281035. The cubic root of 4491436 is about 164.9915636948.

The spelling of 4491436 in words is "four million, four hundred ninety-one thousand, four hundred thirty-six".