302830146 has 24 divisors (see below), whose sum is σ = 694728684. Its totient is φ = 95005440.

The previous prime is 302830139. The next prime is 302830159. The reversal of 302830146 is 641038203.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 263705121 + 39125025 = 16239^2 + 6255^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 494515 + ... + 495126.

Almost surely, 2^302830146 is an apocalyptic number.

302830146 is an abundant number, since it is smaller than the sum of its proper divisors (391898538).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

302830146 is a wasteful number, since it uses less digits than its factorization.

302830146 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 989666 (or 989663 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 27.

The square root of 302830146 is about 17402.0155729157. The cubic root of 302830146 is about 671.5314681553.

Adding to 302830146 its reverse (641038203), we get a palindrome (943868349).

The spelling of 302830146 in words is "three hundred two million, eight hundred thirty thousand, one hundred forty-six".