440221100 has 144 divisors (see below), whose sum is σ = 1097179776. Its totient is φ = 151872000.

The previous prime is 440221099. The next prime is 440221123. The reversal of 440221100 is 1122044.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1939187 + ... + 1939413.

It is an arithmetic number, because the mean of its divisors is an integer number (7619304).

Almost surely, 2^440221100 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 440221100, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (548589888).

440221100 is an abundant number, since it is smaller than the sum of its proper divisors (656958676).

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

440221100 is a wasteful number, since it uses less digits than its factorization.

440221100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 336 (or 329 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 14.

The square root of 440221100 is about 20981.4465659544. The cubic root of 440221100 is about 760.7178697264.

Adding to 440221100 its reverse (1122044), we get a palindrome (441343144).

The spelling of 440221100 in words is "four hundred forty million, two hundred twenty-one thousand, one hundred".