4400918 has 4 divisors (see below), whose sum is σ = 6601380. Its totient is φ = 2200458.

The previous prime is 4400917. The next prime is 4400923. The reversal of 4400918 is 8190044.

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

It is an Ulam number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4400917) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1100228 + ... + 1100231.

It is an arithmetic number, because the mean of its divisors is an integer number (1650345).

Almost surely, 2^4400918 is an apocalyptic number.

4400918 is a deficient number, since it is larger than the sum of its proper divisors (2200462).

4400918 is a wasteful number, since it uses less digits than its factorization.

4400918 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2200461.

The product of its (nonzero) digits is 1152, while the sum is 26.

The square root of 4400918 is about 2097.8365045923. The cubic root of 4400918 is about 163.8756493417.

The spelling of 4400918 in words is "four million, four hundred thousand, nine hundred eighteen".