4549918 has 4 divisors (see below), whose sum is σ = 6824880. Its totient is φ = 2274958.

The previous prime is 4549861. The next prime is 4549933. The reversal of 4549918 is 8199454.

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

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1137478 + ... + 1137481.

It is an arithmetic number, because the mean of its divisors is an integer number (1706220).

Almost surely, 2^4549918 is an apocalyptic number.

4549918 is a deficient number, since it is larger than the sum of its proper divisors (2274962).

4549918 is a wasteful number, since it uses less digits than its factorization.

4549918 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2274961.

The product of its digits is 51840, while the sum is 40.

The square root of 4549918 is about 2133.0536795871. The cubic root of 4549918 is about 165.7045841809.

The spelling of 4549918 in words is "four million, five hundred forty-nine thousand, nine hundred eighteen".