66430302 has 16 divisors (see below), whose sum is σ = 138637440. Its totient is φ = 21180632.

The previous prime is 66430297. The next prime is 66430307. The reversal of 66430302 is 20303466.

It is an interprime number because it is at equal distance from previous prime (66430297) and next prime (66430307).

It is a super-2 number, since 2×66430302² = 8825970047622408, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66430307) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 240552 + ... + 240827.

It is an arithmetic number, because the mean of its divisors is an integer number (8664840).

Almost surely, 2^66430302 is an apocalyptic number.

66430302 is an abundant number, since it is smaller than the sum of its proper divisors (72207138).

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

66430302 is a wasteful number, since it uses less digits than its factorization.

66430302 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 481407.

The product of its (nonzero) digits is 2592, while the sum is 24.

The square root of 66430302 is about 8150.4786362520. The cubic root of 66430302 is about 405.0003597009. Note that the first 3 decimals are identical.

Adding to 66430302 its reverse (20303466), we get a palindrome (86733768).

The spelling of 66430302 in words is "sixty-six million, four hundred thirty thousand, three hundred two".