4489780 has 24 divisors (see below), whose sum is σ = 9754920. Its totient is φ = 1733760.

The previous prime is 4489747. The next prime is 4489799. The reversal of 4489780 is 879844.

It can be written as a sum of positive squares in 4 ways, for example, as 138384 + 4351396 = 372^2 + 2086^2 .

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 7 ways as a sum of consecutive naturals, for example, 3291 + ... + 4450.

It is an arithmetic number, because the mean of its divisors is an integer number (406455).

Almost surely, 2^4489780 is an apocalyptic number.

It is an amenable number.

4489780 is an abundant number, since it is smaller than the sum of its proper divisors (5265140).

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

4489780 is a wasteful number, since it uses less digits than its factorization.

4489780 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7779 (or 7777 counting only the distinct ones).

The product of its (nonzero) digits is 64512, while the sum is 40.

The square root of 4489780 is about 2118.9100971962. The cubic root of 4489780 is about 164.9712836466.

The spelling of 4489780 in words is "four million, four hundred eighty-nine thousand, seven hundred eighty".