440464432 has 30 divisors (see below), whose sum is σ = 867490484. Its totient is φ = 216606720.

The previous prime is 440464417. The next prime is 440464439. The reversal of 440464432 is 234464044.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 440464394 and 440464403.

It is not an unprimeable number, because it can be changed into a prime (440464439) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 686832 + ... + 687472.

Almost surely, 2^440464432 is an apocalyptic number.

It is an amenable number.

440464432 is a deficient number, since it is larger than the sum of its proper divisors (427026052).

440464432 is an frugal number, since it uses more digits than its factorization.

440464432 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1357 (or 710 counting only the distinct ones).

The product of its (nonzero) digits is 36864, while the sum is 31.

The square root of 440464432 is about 20987.2445070810. The cubic root of 440464432 is about 760.8580060542.

It can be divided in two parts, 440464 and 432, that added together give a square (440896 = 664²).

The spelling of 440464432 in words is "four hundred forty million, four hundred sixty-four thousand, four hundred thirty-two".