440135453020 has 12 divisors (see below), whose sum is σ = 924284451384. Its totient is φ = 176054181200.

The previous prime is 440135452997. The next prime is 440135453027. The reversal of 440135453020 is 20354531044.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (440135453027) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11003386306 + ... + 11003386345.

It is an arithmetic number, because the mean of its divisors is an integer number (77023704282).

Almost surely, 2^440135453020 is an apocalyptic number.

It is an amenable number.

440135453020 is an abundant number, since it is smaller than the sum of its proper divisors (484148998364).

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

440135453020 is a wasteful number, since it uses less digits than its factorization.

440135453020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22006772660 (or 22006772658 counting only the distinct ones).

The product of its (nonzero) digits is 28800, while the sum is 31.

Adding to 440135453020 its reverse (20354531044), we get a palindrome (460489984064).

The spelling of 440135453020 in words is "four hundred forty billion, one hundred thirty-five million, four hundred fifty-three thousand, twenty".