4401618 has 16 divisors (see below), whose sum is σ = 9480576. Its totient is φ = 1354320.

The previous prime is 4401601. The next prime is 4401641. The reversal of 4401618 is 8161044.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 28138 + ... + 28293.

It is an arithmetic number, because the mean of its divisors is an integer number (592536).

Almost surely, 2^4401618 is an apocalyptic number.

4401618 is an abundant number, since it is smaller than the sum of its proper divisors (5078958).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

4401618 is a wasteful number, since it uses less digits than its factorization.

4401618 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56449.

The product of its (nonzero) digits is 768, while the sum is 24.

The square root of 4401618 is about 2098.0033365083. The cubic root of 4401618 is about 163.8843374437.

The spelling of 4401618 in words is "four million, four hundred one thousand, six hundred eighteen".