440873631408 has 160 divisors (see below), whose sum is σ = 1388716116480. Its totient is φ = 117649059840.

The previous prime is 440873631397. The next prime is 440873631409. The reversal of 440873631408 is 804136378044.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is not an unprimeable number, because it can be changed into a prime (440873631409) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 453678 + ... + 1042866.

It is an arithmetic number, because the mean of its divisors is an integer number (8679475728).

Almost surely, 2^440873631408 is an apocalyptic number.

440873631408 is a gapful number since it is divisible by the number (48) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 440873631408, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (694358058240).

440873631408 is an abundant number, since it is smaller than the sum of its proper divisors (947842485072).

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

440873631408 is a wasteful number, since it uses less digits than its factorization.

440873631408 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 589355 (or 589349 counting only the distinct ones).

The product of its (nonzero) digits is 1548288, while the sum is 48.

The spelling of 440873631408 in words is "four hundred forty billion, eight hundred seventy-three million, six hundred thirty-one thousand, four hundred eight".