4481388 has 36 divisors (see below), whose sum is σ = 11393928. Its totient is φ = 1485120.

The previous prime is 4481383. The next prime is 4481401. The reversal of 4481388 is 8831844.

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (4481383) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 9895 + ... + 10337.

It is an arithmetic number, because the mean of its divisors is an integer number (316498).

Almost surely, 2^4481388 is an apocalyptic number.

It is an amenable number.

4481388 is an abundant number, since it is smaller than the sum of its proper divisors (6912540).

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

4481388 is a wasteful number, since it uses less digits than its factorization.

4481388 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 734 (or 729 counting only the distinct ones).

The product of its digits is 24576, while the sum is 36.

The square root of 4481388 is about 2116.9289076396. The cubic root of 4481388 is about 164.8684350677.

The spelling of 4481388 in words is "four million, four hundred eighty-one thousand, three hundred eighty-eight".