202423430 has 32 divisors (see below), whose sum is σ = 404997408. Its totient is φ = 72217600.

The previous prime is 202423423. The next prime is 202423433. The reversal of 202423430 is 34324202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (202423433) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 11531 + ... + 23190.

It is an arithmetic number, because the mean of its divisors is an integer number (12656169).

Almost surely, 2^202423430 is an apocalyptic number.

202423430 is an abundant number, since it is smaller than the sum of its proper divisors (202573978).

202423430 is a wasteful number, since it uses less digits than its factorization.

202423430 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34792.

The product of its (nonzero) digits is 1152, while the sum is 20.

The square root of 202423430 is about 14227.5588208238. The cubic root of 202423430 is about 587.1561216801.

Adding to 202423430 its reverse (34324202), we get a palindrome (236747632).

The spelling of 202423430 in words is "two hundred two million, four hundred twenty-three thousand, four hundred thirty".