440165916 has 18 divisors (see below), whose sum is σ = 1112641712. Its totient is φ = 146721960.

The previous prime is 440165909. The next prime is 440165917. The reversal of 440165916 is 619561044.

It is a tau number, because it is divible by the number of its divisors (18).

It is a Harshad number since it is a multiple of its sum of digits (36), and also a Moran number because the ratio is a prime number: 12226831 = 440165916 / (4 + 4 + 0 + 1 + 6 + 5 + 9 + 1 + 6).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (440165917) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 6113380 + ... + 6113451.

Almost surely, 2^440165916 is an apocalyptic number.

It is an amenable number.

440165916 is an abundant number, since it is smaller than the sum of its proper divisors (672475796).

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

440165916 is a wasteful number, since it uses less digits than its factorization.

440165916 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12226841 (or 12226836 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 36.

The square root of 440165916 is about 20980.1314581201. The cubic root of 440165916 is about 760.6860817535.

The spelling of 440165916 in words is "four hundred forty million, one hundred sixty-five thousand, nine hundred sixteen".