440221002 has 48 divisors (see below), whose sum is σ = 958791168. Its totient is φ = 134684160.

The previous prime is 440220973. The next prime is 440221003. The reversal of 440221002 is 200122044.

It is not an unprimeable number, because it can be changed into a prime (440221003) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 192538 + ... + 194810.

It is an arithmetic number, because the mean of its divisors is an integer number (19974816).

Almost surely, 2^440221002 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 440221002, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (479395584).

440221002 is an abundant number, since it is smaller than the sum of its proper divisors (518570166).

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

440221002 is a wasteful number, since it uses less digits than its factorization.

440221002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2495 (or 2482 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 15.

The square root of 440221002 is about 20981.4442305576. Note that the first 3 decimals coincide. The cubic root of 440221002 is about 760.7178132772.

Adding to 440221002 its reverse (200122044), we get a palindrome (640343046).

The spelling of 440221002 in words is "four hundred forty million, two hundred twenty-one thousand, two".