642050 has 12 divisors (see below), whose sum is σ = 1194306. Its totient is φ = 256800.

The previous prime is 642049. The next prime is 642071. The reversal of 642050 is 50246.

It can be written as a sum of positive squares in 3 ways, for example, as 466489 + 175561 = 683^2 + 419^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 6371 + ... + 6470.

2⁶⁴²⁰⁵⁰ is an apocalyptic number.

642050 is a deficient number, since it is larger than the sum of its proper divisors (552256).

642050 is a wasteful number, since it uses less digits than its factorization.

642050 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12853 (or 12848 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 17.

The square root of 642050 is about 801.2802256389. The cubic root of 642050 is about 86.2693018483.

Adding to 642050 its reverse (50246), we get a palindrome (692296).

The spelling of 642050 in words is "six hundred forty-two thousand, fifty".