302003421 has 4 divisors (see below), whose sum is σ = 402671232. Its totient is φ = 201335612.

The previous prime is 302003369. The next prime is 302003437. The reversal of 302003421 is 124300203.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 302003421 - 2¹³ = 301995229 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 302003421.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (302003441) 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 3 ways as a sum of consecutive naturals, for example, 50333901 + ... + 50333906.

It is an arithmetic number, because the mean of its divisors is an integer number (100667808).

Almost surely, 2^302003421 is an apocalyptic number.

It is an amenable number.

302003421 is a deficient number, since it is larger than the sum of its proper divisors (100667811).

302003421 is a wasteful number, since it uses less digits than its factorization.

302003421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 100667810.

The product of its (nonzero) digits is 144, while the sum is 15.

The square root of 302003421 is about 17378.2456249185. The cubic root of 302003421 is about 670.9198185407.

Adding to 302003421 its reverse (124300203), we get a palindrome (426303624).

The spelling of 302003421 in words is "three hundred two million, three thousand, four hundred twenty-one".