421243202 has 8 divisors (see below), whose sum is σ = 633457596. Its totient is φ = 210090672.

The previous prime is 421243189. The next prime is 421243211. The reversal of 421243202 is 202342124.

It can be written as a sum of positive squares in 2 ways, for example, as 412943041 + 8300161 = 20321^2 + 2881^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

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 in 3 ways as a sum of consecutive naturals, for example, 264473 + ... + 266060.

Almost surely, 2^421243202 is an apocalyptic number.

421243202 is a deficient number, since it is larger than the sum of its proper divisors (212214394).

421243202 is a wasteful number, since it uses less digits than its factorization.

421243202 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 530932.

The product of its (nonzero) digits is 768, while the sum is 20.

The square root of 421243202 is about 20524.2101431456. The cubic root of 421243202 is about 749.6254141302.

Adding to 421243202 its reverse (202342124), we get a palindrome (623585326).

The spelling of 421243202 in words is "four hundred twenty-one million, two hundred forty-three thousand, two hundred two".