642627214 has 8 divisors (see below), whose sum is σ = 964236888. Its totient is φ = 321214920.

The previous prime is 642627203. The next prime is 642627221. The reversal of 642627214 is 412726246.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 642627214.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 40917 + ... + 54400.

It is an arithmetic number, because the mean of its divisors is an integer number (120529611).

Almost surely, 2^642627214 is an apocalyptic number.

642627214 is a deficient number, since it is larger than the sum of its proper divisors (321609674).

642627214 is a wasteful number, since it uses less digits than its factorization.

642627214 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 98690.

The product of its digits is 32256, while the sum is 34.

The square root of 642627214 is about 25350.0929781332. The cubic root of 642627214 is about 862.9514663391.

The spelling of 642627214 in words is "six hundred forty-two million, six hundred twenty-seven thousand, two hundred fourteen".