4140664394 has 4 divisors (see below), whose sum is σ = 6210996594. Its totient is φ = 2070332196.

The previous prime is 4140664369. The next prime is 4140664453. The reversal of 4140664394 is 4934660414.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 2877786025 + 1262878369 = 53645^2 + 35537^2 .

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 1035166097 + ... + 1035166100.

Almost surely, 2^4140664394 is an apocalyptic number.

4140664394 is a deficient number, since it is larger than the sum of its proper divisors (2070332200).

4140664394 is a wasteful number, since it uses less digits than its factorization.

4140664394 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2070332199.

The product of its (nonzero) digits is 248832, while the sum is 41.

The square root of 4140664394 is about 64347.9944831228. The cubic root of 4140664394 is about 1605.7946646306.

The spelling of 4140664394 in words is "four billion, one hundred forty million, six hundred sixty-four thousand, three hundred ninety-four".