440489412 has 72 divisors (see below), whose sum is σ = 1217099520. Its totient is φ = 133216320.

The previous prime is 440489411. The next prime is 440489417. The reversal of 440489412 is 214984044.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (440489411) 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, 305389 + ... + 306827.

It is an arithmetic number, because the mean of its divisors is an integer number (16904160).

Almost surely, 2^440489412 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 440489412, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (608549760).

440489412 is an abundant number, since it is smaller than the sum of its proper divisors (776610108).

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

440489412 is a wasteful number, since it uses less digits than its factorization.

440489412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2233 (or 2228 counting only the distinct ones).

The product of its (nonzero) digits is 36864, while the sum is 36.

The square root of 440489412 is about 20987.8396220288. The cubic root of 440489412 is about 760.8723892615.

The spelling of 440489412 in words is "four hundred forty million, four hundred eighty-nine thousand, four hundred twelve".