642213314 has 16 divisors (see below), whose sum is σ = 1006076160. Its totient is φ = 306878880.

The previous prime is 642213283. The next prime is 642213347. The reversal of 642213314 is 413312246.

It is a Curzon number.

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, 53879 + ... + 64709.

It is an arithmetic number, because the mean of its divisors is an integer number (62879760).

Almost surely, 2^642213314 is an apocalyptic number.

642213314 is a deficient number, since it is larger than the sum of its proper divisors (363862846).

642213314 is a wasteful number, since it uses less digits than its factorization.

642213314 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12145.

The product of its digits is 3456, while the sum is 26.

The square root of 642213314 is about 25341.9279850606. The cubic root of 642213314 is about 862.7661581157.

The spelling of 642213314 in words is "six hundred forty-two million, two hundred thirteen thousand, three hundred fourteen".