440241012 has 18 divisors (see below), whose sum is σ = 1112831538. Its totient is φ = 146746992.

The previous prime is 440240989. The next prime is 440241019. The reversal of 440241012 is 210142044.

It can be written as a sum of positive squares in only one way, i.e., 436224996 + 4016016 = 20886^2 + 2004^2 .

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 (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (440241019) 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, 6114423 + ... + 6114494.

Almost surely, 2^440241012 is an apocalyptic number.

It is an amenable number.

440241012 is an abundant number, since it is smaller than the sum of its proper divisors (672590526).

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

440241012 is a wasteful number, since it uses less digits than its factorization.

440241012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12228927 (or 12228922 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 18.

The square root of 440241012 is about 20981.9210750589. The cubic root of 440241012 is about 760.7293391038.

Adding to 440241012 its reverse (210142044), we get a palindrome (650383056).

The spelling of 440241012 in words is "four hundred forty million, two hundred forty-one thousand, twelve".