320130402 has 32 divisors (see below), whose sum is σ = 646444800. Its totient is φ = 105685008.

The previous prime is 320130389. The next prime is 320130407. The reversal of 320130402 is 204031023.

320130402 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a super-3 number, since 3×320130402³ (a number of 26 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (320130407) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 372249 + ... + 373107.

It is an arithmetic number, because the mean of its divisors is an integer number (20201400).

Almost surely, 2^320130402 is an apocalyptic number.

320130402 is an abundant number, since it is smaller than the sum of its proper divisors (326314398).

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

320130402 is a wasteful number, since it uses less digits than its factorization.

320130402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1390.

The product of its (nonzero) digits is 144, while the sum is 15.

The square root of 320130402 is about 17892.1882954545. The cubic root of 320130402 is about 684.0832761711.

Adding to 320130402 its reverse (204031023), we get a palindrome (524161425).

The spelling of 320130402 in words is "three hundred twenty million, one hundred thirty thousand, four hundred two".