642214 has 8 divisors (see below), whose sum is σ = 972648. Its totient is φ = 318000.

The previous prime is 642211. The next prime is 642217. The reversal of 642214 is 412246.

642214 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (642211) and next prime (642217).

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

It is a nialpdrome in base 15.

It is a junction number, because it is equal to n+sod(n) for n = 642191 and 642200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (642211) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1287 + ... + 1714.

It is an arithmetic number, because the mean of its divisors is an integer number (121581).

2⁶⁴²²¹⁴ is an apocalyptic number.

642214 is a deficient number, since it is larger than the sum of its proper divisors (330434).

642214 is a wasteful number, since it uses less digits than its factorization.

642214 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3110.

The product of its digits is 384, while the sum is 19.

The square root of 642214 is about 801.3825553380. The cubic root of 642214 is about 86.2766465312.

It can be divided in two parts, 64 and 2214, that added together give a triangular number (2278 = T₆₇).

The spelling of 642214 in words is "six hundred forty-two thousand, two hundred fourteen".