440400432 has 40 divisors (see below), whose sum is σ = 1139475184. Its totient is φ = 146571264.

The previous prime is 440400421. The next prime is 440400461. The reversal of 440400432 is 234004044.

It is a junction number, because it is equal to n+sod(n) for n = 440400399 and 440400408.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 25488 + ... + 39120.

Almost surely, 2^440400432 is an apocalyptic number.

It is an amenable number.

440400432 is an abundant number, since it is smaller than the sum of its proper divisors (699074752).

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

440400432 is a wasteful number, since it uses less digits than its factorization.

440400432 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14317 (or 14311 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 21.

The square root of 440400432 is about 20985.7197160355. The cubic root of 440400432 is about 760.8211530815.

Adding to 440400432 its reverse (234004044), we get a palindrome (674404476).

The spelling of 440400432 in words is "four hundred forty million, four hundred thousand, four hundred thirty-two".