440189712 has 60 divisors (see below), whose sum is σ = 1234800060. Its totient is φ = 146386944.

The previous prime is 440189707. The next prime is 440189713. The reversal of 440189712 is 217981044.

It can be written as a sum of positive squares in 2 ways, for example, as 374190336 + 65999376 = 19344^2 + 8124^2 .

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (440189713) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 62464 + ... + 69152.

It is an arithmetic number, because the mean of its divisors is an integer number (20580001).

Almost surely, 2^440189712 is an apocalyptic number.

It is an amenable number.

440189712 is an abundant number, since it is smaller than the sum of its proper divisors (794610348).

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

440189712 is a wasteful number, since it uses less digits than its factorization.

440189712 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7160 (or 7151 counting only the distinct ones).

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

The square root of 440189712 is about 20980.6985584370. The cubic root of 440189712 is about 760.6997894329.

The spelling of 440189712 in words is "four hundred forty million, one hundred eighty-nine thousand, seven hundred twelve".