640411114 has 16 divisors (see below), whose sum is σ = 1162427328. Its totient is φ = 258316992.

The previous prime is 640411091. The next prime is 640411117. The reversal of 640411114 is 411114046.

It is not an unprimeable number, because it can be changed into a prime (640411117) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1345164 + ... + 1345639.

It is an arithmetic number, because the mean of its divisors is an integer number (72651708).

Almost surely, 2^640411114 is an apocalyptic number.

640411114 is a deficient number, since it is larger than the sum of its proper divisors (522016214).

640411114 is a wasteful number, since it uses less digits than its factorization.

640411114 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2690829.

The product of its (nonzero) digits is 384, while the sum is 22.

The square root of 640411114 is about 25306.3453307664. The cubic root of 640411114 is about 861.9583611542.

The spelling of 640411114 in words is "six hundred forty million, four hundred eleven thousand, one hundred fourteen".