445133243640 has 64 divisors (see below), whose sum is σ = 1335466640160. Its totient is φ = 118696250880.

The previous prime is 445133243623. The next prime is 445133243641. The reversal of 445133243640 is 46342331544.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (445133243641) 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, 2647362 + ... + 2810478.

Almost surely, 2^445133243640 is an apocalyptic number.

445133243640 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

445133243640 is an abundant number, since it is smaller than the sum of its proper divisors (890333396520).

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

445133243640 is a wasteful number, since it uses less digits than its factorization.

445133243640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 185872 (or 185868 counting only the distinct ones).

The product of its (nonzero) digits is 414720, while the sum is 39.

The spelling of 445133243640 in words is "four hundred forty-five billion, one hundred thirty-three million, two hundred forty-three thousand, six hundred forty".