445630677040 has 80 divisors (see below), whose sum is σ = 1092792556800. Its totient is φ = 168534556416.

The previous prime is 445630677017. The next prime is 445630677043. The reversal of 445630677040 is 40776036544.

It is a tau number, because it is divible by the number of its divisors (80).

It is not an unprimeable number, because it can be changed into a prime (445630677043) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 473131 + ... + 1055989.

It is an arithmetic number, because the mean of its divisors is an integer number (13659906960).

Almost surely, 2^445630677040 is an apocalyptic number.

445630677040 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 445630677040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (546396278400).

445630677040 is an abundant number, since it is smaller than the sum of its proper divisors (647161879760).

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

445630677040 is a wasteful number, since it uses less digits than its factorization.

445630677040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 583394 (or 583388 counting only the distinct ones).

The product of its (nonzero) digits is 1693440, while the sum is 46.

The spelling of 445630677040 in words is "four hundred forty-five billion, six hundred thirty million, six hundred seventy-seven thousand, forty".