445140535420 has 48 divisors (see below), whose sum is σ = 1068401492928. Its totient is φ = 152610439680.

The previous prime is 445140535393. The next prime is 445140535439. The reversal of 445140535420 is 24535041544.

It is a self number, because there is not a number n which added to its sum of digits gives 445140535420.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 2491480 + ... + 2664160.

It is an arithmetic number, because the mean of its divisors is an integer number (22258364436).

Almost surely, 2^445140535420 is an apocalyptic number.

It is an amenable number.

445140535420 is an abundant number, since it is smaller than the sum of its proper divisors (623260957508).

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

445140535420 is a wasteful number, since it uses less digits than its factorization.

445140535420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 191110 (or 191108 counting only the distinct ones).

The product of its (nonzero) digits is 192000, while the sum is 37.

Adding to 445140535420 its reverse (24535041544), we get a palindrome (469675576964).

The spelling of 445140535420 in words is "four hundred forty-five billion, one hundred forty million, five hundred thirty-five thousand, four hundred twenty".