444401140 has 12 divisors (see below), whose sum is σ = 933242436. Its totient is φ = 177760448.

The previous prime is 444401123. The next prime is 444401143. The reversal of 444401140 is 41104444.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 67963536 + 376437604 = 8244^2 + 19402^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (444401143) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11110009 + ... + 11110048.

It is an arithmetic number, because the mean of its divisors is an integer number (77770203).

Almost surely, 2^444401140 is an apocalyptic number.

It is an amenable number.

444401140 is an abundant number, since it is smaller than the sum of its proper divisors (488841296).

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

444401140 is a wasteful number, since it uses less digits than its factorization.

444401140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22220066 (or 22220064 counting only the distinct ones).

The product of its (nonzero) digits is 1024, while the sum is 22.

The square root of 444401140 is about 21080.8239876908. The cubic root of 444401140 is about 763.1180419567.

Adding to 444401140 its reverse (41104444), we get a palindrome (485505584).

The spelling of 444401140 in words is "four hundred forty-four million, four hundred one thousand, one hundred forty".