441621140 has 12 divisors (see below), whose sum is σ = 927404436. Its totient is φ = 176648448.

The previous prime is 441621119. The next prime is 441621143. The reversal of 441621140 is 41126144.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 296803984 + 144817156 = 17228^2 + 12034^2 .

It is a super-3 number, since 3×441621140³ (a number of 27 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (441621143) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11040509 + ... + 11040548.

It is an arithmetic number, because the mean of its divisors is an integer number (77283703).

Almost surely, 2^441621140 is an apocalyptic number.

It is an amenable number.

441621140 is an abundant number, since it is smaller than the sum of its proper divisors (485783296).

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

441621140 is a wasteful number, since it uses less digits than its factorization.

441621140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22081066 (or 22081064 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 23.

The square root of 441621140 is about 21014.7838437610. The cubic root of 441621140 is about 761.5234561230.

Adding to 441621140 its reverse (41126144), we get a palindrome (482747284).

The spelling of 441621140 in words is "four hundred forty-one million, six hundred twenty-one thousand, one hundred forty".