202642 has 16 divisors (see below), whose sum is σ = 339264. Its totient is φ = 90000.

The previous prime is 202639. The next prime is 202661. The reversal of 202642 is 246202.

202642 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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, 1267 + ... + 1417.

It is an arithmetic number, because the mean of its divisors is an integer number (21204).

2²⁰²⁶⁴² is an apocalyptic number.

202642 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

202642 is a deficient number, since it is larger than the sum of its proper divisors (136622).

202642 is a wasteful number, since it uses less digits than its factorization.

202642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 225.

The product of its (nonzero) digits is 192, while the sum is 16.

The square root of 202642 is about 450.1577501277. The cubic root of 202642 is about 58.7367376129.

Adding to 202642 its reverse (246202), we get a palindrome (448844).

It can be divided in two parts, 20 and 2642, that added together give a palindrome (2662).

The spelling of 202642 in words is "two hundred two thousand, six hundred forty-two".