4481000 has 32 divisors (see below), whose sum is σ = 10487880. Its totient is φ = 1792000.

The previous prime is 4480981. The next prime is 4481003. The reversal of 4481000 is 1844.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 1965604 + 2515396 = 1402^2 + 1586^2 .

It is a super-2 number, since 2×4481000² = 40158722000000, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 4481000.

It is not an unprimeable number, because it can be changed into a prime (4481003) 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, 1241 + ... + 3240.

Almost surely, 2^4481000 is an apocalyptic number.

4481000 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

4481000 is an abundant number, since it is smaller than the sum of its proper divisors (6006880).

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

4481000 is a wasteful number, since it uses less digits than its factorization.

4481000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4502 (or 4488 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 17.

The square root of 4481000 is about 2116.8372634664. The cubic root of 4481000 is about 164.8636768099.

Adding to 4481000 its reverse (1844), we get a palindrome (4482844).

The spelling of 4481000 in words is "four million, four hundred eighty-one thousand".