8440632 has 64 divisors (see below), whose sum is σ = 24480000. Its totient is φ = 2689632.

The previous prime is 8440613. The next prime is 8440637. The reversal of 8440632 is 2360448.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a junction number, because it is equal to n+sod(n) for n = 8440596 and 8440605.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8440637) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4119 + ... + 5817.

It is an arithmetic number, because the mean of its divisors is an integer number (382500).

Almost surely, 2^8440632 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 8440632, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (12240000).

8440632 is an abundant number, since it is smaller than the sum of its proper divisors (16039368).

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

8440632 is a wasteful number, since it uses less digits than its factorization.

8440632 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1737 (or 1727 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 27.

The square root of 8440632 is about 2905.2765789164. The cubic root of 8440632 is about 203.6065079239.

The spelling of 8440632 in words is "eight million, four hundred forty thousand, six hundred thirty-two".