440017209018 has 12 divisors (see below), whose sum is σ = 953370619578. Its totient is φ = 146672403000.

The previous prime is 440017208959. The next prime is 440017209041. The reversal of 440017209018 is 810902710044.

440017209018 is a `hidden beast` number, since 440 + 0 + 1 + 7 + 209 + 0 + 1 + 8 = 666.

It can be written as a sum of positive squares in only one way, i.e., 434614518009 + 5402691009 = 659253^2 + 73503^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 12222700233 + ... + 12222700268.

Almost surely, 2^440017209018 is an apocalyptic number.

440017209018 is an abundant number, since it is smaller than the sum of its proper divisors (513353410560).

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

440017209018 is a wasteful number, since it uses less digits than its factorization.

440017209018 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24445400509 (or 24445400506 counting only the distinct ones).

The product of its (nonzero) digits is 16128, while the sum is 36.

The spelling of 440017209018 in words is "four hundred forty billion, seventeen million, two hundred nine thousand, eighteen".