640050226 has 16 divisors (see below), whose sum is σ = 1011296160. Its totient is φ = 302974560.

The previous prime is 640050217. The next prime is 640050241. The reversal of 640050226 is 622050046.

It is a self number, because there is not a number n which added to its sum of digits gives 640050226.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 60505 + ... + 70291.

It is an arithmetic number, because the mean of its divisors is an integer number (63206010).

Almost surely, 2^640050226 is an apocalyptic number.

640050226 is a deficient number, since it is larger than the sum of its proper divisors (371245934).

640050226 is a wasteful number, since it uses less digits than its factorization.

640050226 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11529.

The product of its (nonzero) digits is 2880, while the sum is 25.

The square root of 640050226 is about 25299.2139403579. The cubic root of 640050226 is about 861.7964188890.

The spelling of 640050226 in words is "six hundred forty million, fifty thousand, two hundred twenty-six".