445002064 has 80 divisors (see below), whose sum is σ = 988717968. Its totient is φ = 192208896.

The previous prime is 445002053. The next prime is 445002109. The reversal of 445002064 is 460200544.

It can be written as a sum of positive squares in 8 ways, for example, as 23931664 + 421070400 = 4892^2 + 20520^2 .

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1120714 + ... + 1121110.

Almost surely, 2^445002064 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 445002064, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (494358984).

445002064 is an abundant number, since it is smaller than the sum of its proper divisors (543715904).

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

445002064 is a wasteful number, since it uses less digits than its factorization.

445002064 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 752 (or 746 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 25.

The square root of 445002064 is about 21095.0720311641. The cubic root of 445002064 is about 763.4618525091.

It can be divided in two parts, 44500 and 2064, that added together give a palindrome (46564).

The spelling of 445002064 in words is "four hundred forty-five million, two thousand, sixty-four".