393834130 has 16 divisors (see below), whose sum is σ = 710676504. Its totient is φ = 157139200.

The previous prime is 393834101. The next prime is 393834139. The reversal of 393834130 is 31438393.

It can be written as a sum of positive squares in 4 ways, for example, as 393109929 + 724201 = 19827^2 + 851^2 .

It is not an unprimeable number, because it can be changed into a prime (393834139) 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, 45097 + ... + 53116.

Almost surely, 2^393834130 is an apocalyptic number.

393834130 is a deficient number, since it is larger than the sum of its proper divisors (316842374).

393834130 is a wasteful number, since it uses less digits than its factorization.

393834130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 98621.

The product of its (nonzero) digits is 23328, while the sum is 34.

The square root of 393834130 is about 19845.2545965024. The cubic root of 393834130 is about 733.0008021745. Note that the first 3 decimals are identical.

The spelling of 393834130 in words is "three hundred ninety-three million, eight hundred thirty-four thousand, one hundred thirty".