640227014 has 16 divisors (see below), whose sum is σ = 1104804096. Its totient is φ = 272565000.

The previous prime is 640227001. The next prime is 640227023. The reversal of 640227014 is 410722046.

It is a congruent number.

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 7 ways as a sum of consecutive naturals, for example, 149312 + ... + 153539.

It is an arithmetic number, because the mean of its divisors is an integer number (69050256).

Almost surely, 2^640227014 is an apocalyptic number.

640227014 is a deficient number, since it is larger than the sum of its proper divisors (464577082).

640227014 is a wasteful number, since it uses less digits than its factorization.

640227014 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 303011.

The product of its (nonzero) digits is 2688, while the sum is 26.

The square root of 640227014 is about 25302.7076416734. The cubic root of 640227014 is about 861.8757570586.

The spelling of 640227014 in words is "six hundred forty million, two hundred twenty-seven thousand, fourteen".