202439871 has 16 divisors (see below), whose sum is σ = 301593600. Its totient is φ = 134202744.

The previous prime is 202439869. The next prime is 202439891. The reversal of 202439871 is 178934202.

It is not a de Polignac number, because 202439871 - 2¹ = 202439869 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (202439801) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 16111 + ... + 25776.

It is an arithmetic number, because the mean of its divisors is an integer number (18849600).

Almost surely, 2^202439871 is an apocalyptic number.

202439871 is a deficient number, since it is larger than the sum of its proper divisors (99153729).

202439871 is a wasteful number, since it uses less digits than its factorization.

202439871 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42075 (or 42069 counting only the distinct ones).

The product of its (nonzero) digits is 24192, while the sum is 36.

The square root of 202439871 is about 14228.1365961956. The cubic root of 202439871 is about 587.1720176866.

The spelling of 202439871 in words is "two hundred two million, four hundred thirty-nine thousand, eight hundred seventy-one".