440434140 has 24 divisors (see below), whose sum is σ = 1233215760. Its totient is φ = 117449088.

The previous prime is 440434139. The next prime is 440434151. The reversal of 440434140 is 41434044.

It is a self number, because there is not a number n which added to its sum of digits gives 440434140.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3670225 + ... + 3670344.

It is an arithmetic number, because the mean of its divisors is an integer number (51383990).

Almost surely, 2^440434140 is an apocalyptic number.

It is an amenable number.

440434140 is an abundant number, since it is smaller than the sum of its proper divisors (792781620).

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

440434140 is a wasteful number, since it uses less digits than its factorization.

440434140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7340581 (or 7340579 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 24.

The square root of 440434140 is about 20986.5228182279. The cubic root of 440434140 is about 760.8405635266.

Adding to 440434140 its reverse (41434044), we get a palindrome (481868184).

The spelling of 440434140 in words is "four hundred forty million, four hundred thirty-four thousand, one hundred forty".