302420530 has 24 divisors (see below), whose sum is σ = 574522092. Its totient is φ = 114600096.

The previous prime is 302420527. The next prime is 302420533. The reversal of 302420530 is 35024203.

302420530 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (302420527) and next prime (302420533).

It can be written as a sum of positive squares in 2 ways, for example, as 298287441 + 4133089 = 17271^2 + 2033^2 .

It is a Harshad number since it is a multiple of its sum of digits (19).

It is a junction number, because it is equal to n+sod(n) for n = 302420498 and 302420507.

It is not an unprimeable number, because it can be changed into a prime (302420533) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 38277 + ... + 45496.

Almost surely, 2^302420530 is an apocalyptic number.

302420530 is a deficient number, since it is larger than the sum of its proper divisors (272101562).

302420530 is a wasteful number, since it uses less digits than its factorization.

302420530 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 83818 (or 83799 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 19.

The square root of 302420530 is about 17390.2423789894. The cubic root of 302420530 is about 671.2285545109.

Adding to 302420530 its reverse (35024203), we get a palindrome (337444733).

The spelling of 302420530 in words is "three hundred two million, four hundred twenty thousand, five hundred thirty".