4491980 has 24 divisors (see below), whose sum is σ = 9930480. Its totient is φ = 1702080.

The previous prime is 4491953. The next prime is 4491989. The reversal of 4491980 is 891944.

It is a plaindrome in base 16.

It is a self number, because there is not a number n which added to its sum of digits gives 4491980.

It is not an unprimeable number, because it can be changed into a prime (4491989) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5531 + ... + 6290.

It is an arithmetic number, because the mean of its divisors is an integer number (413770).

Almost surely, 2^4491980 is an apocalyptic number.

It is an amenable number.

4491980 is an abundant number, since it is smaller than the sum of its proper divisors (5438500).

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

4491980 is a wasteful number, since it uses less digits than its factorization.

4491980 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11849 (or 11847 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 35.

The square root of 4491980 is about 2119.4291684319. The cubic root of 4491980 is about 164.9982246518.

The spelling of 4491980 in words is "four million, four hundred ninety-one thousand, nine hundred eighty".