202102424 has 8 divisors (see below), whose sum is σ = 378942060. Its totient is φ = 101051208.

The previous prime is 202102393. The next prime is 202102429. The reversal of 202102424 is 424201202.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (202102429) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12631394 + ... + 12631409.

Almost surely, 2^202102424 is an apocalyptic number.

It is an amenable number.

202102424 is a deficient number, since it is larger than the sum of its proper divisors (176839636).

202102424 is a wasteful number, since it uses less digits than its factorization.

202102424 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25262809 (or 25262805 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 17.

The square root of 202102424 is about 14216.2732106555. The cubic root of 202102424 is about 586.8455839167.

Adding to 202102424 its reverse (424201202), we get a palindrome (626303626).

The spelling of 202102424 in words is "two hundred two million, one hundred two thousand, four hundred twenty-four".