440030431432 has 16 divisors (see below), whose sum is σ = 825064272000. Its totient is φ = 220013292240.

The previous prime is 440030431409. The next prime is 440030431471. The reversal of 440030431432 is 234134030044.

It is a self number, because there is not a number n which added to its sum of digits gives 440030431432.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1353069 + ... + 1646467.

It is an arithmetic number, because the mean of its divisors is an integer number (51566517000).

Almost surely, 2^440030431432 is an apocalyptic number.

It is an amenable number.

440030431432 is a deficient number, since it is larger than the sum of its proper divisors (385033840568).

440030431432 is a wasteful number, since it uses less digits than its factorization.

440030431432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 480876 (or 480872 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 28.

Adding to 440030431432 its reverse (234134030044), we get a palindrome (674164461476).

The spelling of 440030431432 in words is "four hundred forty billion, thirty million, four hundred thirty-one thousand, four hundred thirty-two".