642614 has 16 divisors (see below), whose sum is σ = 1111968. Its totient is φ = 272832.

The previous prime is 642613. The next prime is 642623. The reversal of 642614 is 416246.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 642614.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 642614.

It is not an unprimeable number, because it can be changed into a prime (642613) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2642 + ... + 2874.

It is an arithmetic number, because the mean of its divisors is an integer number (69498).

2⁶⁴²⁶¹⁴ is an apocalyptic number.

642614 is a deficient number, since it is larger than the sum of its proper divisors (469354).

642614 is a wasteful number, since it uses less digits than its factorization.

642614 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 439.

The product of its digits is 1152, while the sum is 23.

The square root of 642614 is about 801.6320851862. The cubic root of 642614 is about 86.2945551495.

The spelling of 642614 in words is "six hundred forty-two thousand, six hundred fourteen".