440133420 has 96 divisors (see below), whose sum is σ = 1253790720. Its totient is φ = 115349760.

The previous prime is 440133403. The next prime is 440133431. The reversal of 440133420 is 24331044.

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 31 ways as a sum of consecutive naturals, for example, 1415065 + ... + 1415375.

It is an arithmetic number, because the mean of its divisors is an integer number (13060320).

Almost surely, 2^440133420 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 440133420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (626895360).

440133420 is an abundant number, since it is smaller than the sum of its proper divisors (813657300).

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

440133420 is a wasteful number, since it uses less digits than its factorization.

440133420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 655 (or 653 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 21.

The square root of 440133420 is about 20979.3569968195. The cubic root of 440133420 is about 760.6673616434.

Adding to 440133420 its reverse (24331044), we get a palindrome (464464464).

The spelling of 440133420 in words is "four hundred forty million, one hundred thirty-three thousand, four hundred twenty".