445502025440 has 96 divisors (see below), whose sum is σ = 1098620905536. Its totient is φ = 170396835840.

The previous prime is 445502025421. The next prime is 445502025469. The reversal of 445502025440 is 44520205544.

It is a super-2 number, since 2×445502025440² (a number of 24 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 445502025440.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12173570 + ... + 12210110.

It is an arithmetic number, because the mean of its divisors is an integer number (11443967766).

Almost surely, 2^445502025440 is an apocalyptic number.

445502025440 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 445502025440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (549310452768).

445502025440 is an abundant number, since it is smaller than the sum of its proper divisors (653118880096).

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

445502025440 is a wasteful number, since it uses less digits than its factorization.

445502025440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39892 (or 39884 counting only the distinct ones).

The product of its (nonzero) digits is 128000, while the sum is 35.

The spelling of 445502025440 in words is "four hundred forty-five billion, five hundred two million, twenty-five thousand, four hundred forty".