202842 has 24 divisors (see below), whose sum is σ = 449280. Its totient is φ = 66120.

The previous prime is 202841. The next prime is 202859. The reversal of 202842 is 248202.

It is a super-2 number, since 2×202842² = 82289753928, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 202842.

It is not an unprimeable number, because it can be changed into a prime (202841) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 967 + ... + 1157.

It is an arithmetic number, because the mean of its divisors is an integer number (18720).

2²⁰²⁸⁴² is an apocalyptic number.

202842 is an abundant number, since it is smaller than the sum of its proper divisors (246438).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

202842 is a wasteful number, since it uses less digits than its factorization.

202842 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 258 (or 255 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 18.

The square root of 202842 is about 450.3798396909. The cubic root of 202842 is about 58.7560549064.

The spelling of 202842 in words is "two hundred two thousand, eight hundred forty-two".