302224421 has 4 divisors (see below), whose sum is σ = 305216844. Its totient is φ = 299232000.

The previous prime is 302224397. The next prime is 302224423. The reversal of 302224421 is 124422203.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 180364900 + 121859521 = 13430^2 + 11039^2 .

It is a cyclic number.

It is not a de Polignac number, because 302224421 - 2¹⁸ = 301962277 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 302224393 and 302224402.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (302224423) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1496060 + ... + 1496261.

It is an arithmetic number, because the mean of its divisors is an integer number (76304211).

Almost surely, 2^302224421 is an apocalyptic number.

It is an amenable number.

302224421 is a deficient number, since it is larger than the sum of its proper divisors (2992423).

302224421 is a wasteful number, since it uses less digits than its factorization.

302224421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2992422.

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

The square root of 302224421 is about 17384.6029865511. The cubic root of 302224421 is about 671.0834338251.

Adding to 302224421 its reverse (124422203), we get a palindrome (426646624).

It can be divided in two parts, 30222 and 4421, that added together give a palindrome (34643).

The spelling of 302224421 in words is "three hundred two million, two hundred twenty-four thousand, four hundred twenty-one".