440996840 has 32 divisors (see below), whose sum is σ = 1044468000. Its totient is φ = 167114304.

The previous prime is 440996797. The next prime is 440996849. The reversal of 440996840 is 48699044.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 440996791 and 440996800.

It is not an unprimeable number, because it can be changed into a prime (440996849) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 289370 + ... + 290889.

It is an arithmetic number, because the mean of its divisors is an integer number (32639625).

Almost surely, 2^440996840 is an apocalyptic number.

440996840 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

440996840 is an abundant number, since it is smaller than the sum of its proper divisors (603471160).

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

440996840 is a wasteful number, since it uses less digits than its factorization.

440996840 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 580289 (or 580285 counting only the distinct ones).

The product of its (nonzero) digits is 248832, while the sum is 44.

The square root of 440996840 is about 20999.9247617700. The cubic root of 440996840 is about 761.1644430437.

The spelling of 440996840 in words is "four hundred forty million, nine hundred ninety-six thousand, eight hundred forty".