440643029140 has 24 divisors (see below), whose sum is σ = 928868814720. Its totient is φ = 175587030048.

The previous prime is 440643029131. The next prime is 440643029147. The reversal of 440643029140 is 41920346044.

It is a self number, because there is not a number n which added to its sum of digits gives 440643029140.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (440643029147) by changing a digit.

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, 41880960 + ... + 41891479.

It is an arithmetic number, because the mean of its divisors is an integer number (38702867280).

Almost surely, 2^440643029140 is an apocalyptic number.

It is an amenable number.

440643029140 is an abundant number, since it is smaller than the sum of its proper divisors (488225785580).

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

440643029140 is a wasteful number, since it uses less digits than its factorization.

440643029140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 83772711 (or 83772709 counting only the distinct ones).

The product of its (nonzero) digits is 82944, while the sum is 37.

The spelling of 440643029140 in words is "four hundred forty billion, six hundred forty-three million, twenty-nine thousand, one hundred forty".