440145770860 has 24 divisors (see below), whose sum is σ = 924443681616. Its totient is φ = 176032105920.

The previous prime is 440145770809. The next prime is 440145770873. The reversal of 440145770860 is 68077541044.

It is a self number, because there is not a number n which added to its sum of digits gives 440145770860.

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, 1499626 + ... + 1768945.

It is an arithmetic number, because the mean of its divisors is an integer number (38518486734).

Almost surely, 2^440145770860 is an apocalyptic number.

It is an amenable number.

440145770860 is an abundant number, since it is smaller than the sum of its proper divisors (484297910756).

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

440145770860 is a wasteful number, since it uses less digits than its factorization.

440145770860 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3275313 (or 3275311 counting only the distinct ones).

The product of its (nonzero) digits is 752640, while the sum is 46.

The spelling of 440145770860 in words is "four hundred forty billion, one hundred forty-five million, seven hundred seventy thousand, eight hundred sixty".