440432340 has 24 divisors (see below), whose sum is σ = 1233210720. Its totient is φ = 117448608.

The previous prime is 440432323. The next prime is 440432351. The reversal of 440432340 is 43234044.

It is a happy number.

It is a super-2 number, since 2×440432340² = 387961292235751200, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 440432340.

It is a congruent number.

It is an unprimeable number.

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, 3670210 + ... + 3670329.

It is an arithmetic number, because the mean of its divisors is an integer number (51383780).

Almost surely, 2^440432340 is an apocalyptic number.

It is an amenable number.

440432340 is an abundant number, since it is smaller than the sum of its proper divisors (792778380).

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

440432340 is a wasteful number, since it uses less digits than its factorization.

440432340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7340551 (or 7340549 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 24.

The square root of 440432340 is about 20986.4799335191. The cubic root of 440432340 is about 760.8395270380.

Adding to 440432340 its reverse (43234044), we get a palindrome (483666384).

The spelling of 440432340 in words is "four hundred forty million, four hundred thirty-two thousand, three hundred forty".