4421000 has 32 divisors (see below), whose sum is σ = 10347480. Its totient is φ = 1768000.

The previous prime is 4420993. The next prime is 4421023. The reversal of 4421000 is 1244.

It can be written as a sum of positive squares in 4 ways, for example, as 2067844 + 2353156 = 1438^2 + 1534^2 .

It is a nialpdrome in base 10.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1211 + ... + 3210.

Almost surely, 2^4421000 is an apocalyptic number.

4421000 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

4421000 is an abundant number, since it is smaller than the sum of its proper divisors (5926480).

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

4421000 is a wasteful number, since it uses less digits than its factorization.

4421000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4442 (or 4428 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 11.

The square root of 4421000 is about 2102.6174164598. The cubic root of 4421000 is about 164.1245336088.

Adding to 4421000 its reverse (1244), we get a palindrome (4422244).

The spelling of 4421000 in words is "four million, four hundred twenty-one thousand".