202430 has 16 divisors (see below), whose sum is σ = 376704. Its totient is φ = 78240.

The previous prime is 202409. The next prime is 202441. The reversal of 202430 is 34202.

It is a congruent number.

It is an unprimeable number.

202430 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17 + ... + 636.

It is an arithmetic number, because the mean of its divisors is an integer number (23544).

2²⁰²⁴³⁰ is an apocalyptic number.

202430 is a deficient number, since it is larger than the sum of its proper divisors (174274).

202430 is a wasteful number, since it uses less digits than its factorization.

202430 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 691.

The product of its (nonzero) digits is 48, while the sum is 11.

The square root of 202430 is about 449.9222154995. The cubic root of 202430 is about 58.7162473998.

Adding to 202430 its reverse (34202), we get a palindrome (236632).

The spelling of 202430 in words is "two hundred two thousand, four hundred thirty".