640050600 has 96 divisors (see below), whose sum is σ = 2267622720. Its totient is φ = 146296320.

The previous prime is 640050577. The next prime is 640050611. The reversal of 640050600 is 6050046.

It is a Harshad number since it is a multiple of its sum of digits (21).

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 23 ways as a sum of consecutive naturals, for example, 71997 + ... + 80396.

It is an arithmetic number, because the mean of its divisors is an integer number (23621070).

Almost surely, 2^640050600 is an apocalyptic number.

640050600 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

640050600 is an abundant number, since it is smaller than the sum of its proper divisors (1627572120).

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

640050600 is a wasteful number, since it uses less digits than its factorization.

640050600 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 152419 (or 152410 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 21.

The square root of 640050600 is about 25299.2213318908. The cubic root of 640050600 is about 861.7965867466.

The spelling of 640050600 in words is "six hundred forty million, fifty thousand, six hundred".