4491800 has 48 divisors (see below), whose sum is σ = 10743360. Its totient is φ = 1745280.

The previous prime is 4491793. The next prime is 4491811. The reversal of 4491800 is 81944.

It is a self number, because there is not a number n which added to its sum of digits gives 4491800.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 7097 + ... + 7703.

It is an arithmetic number, because the mean of its divisors is an integer number (223820).

Almost surely, 2^4491800 is an apocalyptic number.

4491800 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 4491800, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5371680).

4491800 is an abundant number, since it is smaller than the sum of its proper divisors (6251560).

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

4491800 is a wasteful number, since it uses less digits than its factorization.

4491800 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 660 (or 651 counting only the distinct ones).

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

The square root of 4491800 is about 2119.3867037424. The cubic root of 4491800 is about 164.9960207182.

The spelling of 4491800 in words is "four million, four hundred ninety-one thousand, eight hundred".