445235420 has 48 divisors (see below), whose sum is σ = 1069770240. Its totient is φ = 152480064.

The previous prime is 445235387. The next prime is 445235431. The reversal of 445235420 is 24532544.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 223991 + ... + 225969.

It is an arithmetic number, because the mean of its divisors is an integer number (22286880).

Almost surely, 2^445235420 is an apocalyptic number.

It is an amenable number.

445235420 is an abundant number, since it is smaller than the sum of its proper divisors (624534820).

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

445235420 is a wasteful number, since it uses less digits than its factorization.

445235420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3602 (or 3600 counting only the distinct ones).

The product of its (nonzero) digits is 19200, while the sum is 29.

The square root of 445235420 is about 21100.6023610702. The cubic root of 445235420 is about 763.5952805580.

Adding to 445235420 its reverse (24532544), we get a palindrome (469767964).

The spelling of 445235420 in words is "four hundred forty-five million, two hundred thirty-five thousand, four hundred twenty".