130402306 has 16 divisors (see below), whose sum is σ = 202192128. Its totient is φ = 63010800.

The previous prime is 130402303. The next prime is 130402343. The reversal of 130402306 is 603204031.

It is a super-2 number, since 2×130402306² = 34009522820235272, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (130402303) 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 7 ways as a sum of consecutive naturals, for example, 84861 + ... + 86383.

It is an arithmetic number, because the mean of its divisors is an integer number (12637008).

Almost surely, 2^130402306 is an apocalyptic number.

130402306 is a deficient number, since it is larger than the sum of its proper divisors (71789822).

130402306 is a wasteful number, since it uses less digits than its factorization.

130402306 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2937.

The product of its (nonzero) digits is 432, while the sum is 19.

The square root of 130402306 is about 11419.3829080209. The cubic root of 130402306 is about 507.1017280217.

Adding to 130402306 its reverse (603204031), we get a palindrome (733606337).

The spelling of 130402306 in words is "one hundred thirty million, four hundred two thousand, three hundred six".