440071161888 has 48 divisors (see below), whose sum is σ = 1157395702176. Its totient is φ = 146409891840.

The previous prime is 440071161883. The next prime is 440071161911. The reversal of 440071161888 is 888161170044.

It is a tau number, because it is divible by the number of its divisors (48).

It is a Harshad number since it is a multiple of its sum of digits (48).

It is not an unprimeable number, because it can be changed into a prime (440071161883) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4332273 + ... + 4432688.

It is an arithmetic number, because the mean of its divisors is an integer number (24112410462).

Almost surely, 2^440071161888 is an apocalyptic number.

440071161888 is a gapful number since it is divisible by the number (48) formed by its first and last digit.

It is an amenable number.

440071161888 is an abundant number, since it is smaller than the sum of its proper divisors (717324540288).

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

440071161888 is a wasteful number, since it uses less digits than its factorization.

440071161888 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8765497 (or 8765489 counting only the distinct ones).

The product of its (nonzero) digits is 344064, while the sum is 48.

The spelling of 440071161888 in words is "four hundred forty billion, seventy-one million, one hundred sixty-one thousand, eight hundred eighty-eight".