440444052 has 36 divisors (see below), whose sum is σ = 1115251956. Its totient is φ = 146563200.

The previous prime is 440444051. The next prime is 440444057. The reversal of 440444052 is 250444044.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 317766276 + 122677776 = 17826^2 + 11076^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (440444051) 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, 11458 + ... + 31814.

It is an arithmetic number, because the mean of its divisors is an integer number (30979221).

Almost surely, 2^440444052 is an apocalyptic number.

It is an amenable number.

440444052 is an abundant number, since it is smaller than the sum of its proper divisors (674807904).

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

440444052 is a wasteful number, since it uses less digits than its factorization.

440444052 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20968 (or 20963 counting only the distinct ones).

The product of its (nonzero) digits is 10240, while the sum is 27.

The square root of 440444052 is about 20986.7589684544. The cubic root of 440444052 is about 760.8462710731.

Adding to 440444052 its reverse (250444044), we get a palindrome (690888096).

The spelling of 440444052 in words is "four hundred forty million, four hundred forty-four thousand, fifty-two".