130638838 has 16 divisors (see below), whose sum is σ = 214041024. Its totient is φ = 59306760.

The previous prime is 130638817. The next prime is 130638839. The reversal of 130638838 is 838836031.

It is a self number, because there is not a number n which added to its sum of digits gives 130638838.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (130638839) 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, 16681 + ... + 23227.

It is an arithmetic number, because the mean of its divisors is an integer number (13377564).

Almost surely, 2^130638838 is an apocalyptic number.

130638838 is a deficient number, since it is larger than the sum of its proper divisors (83402186).

130638838 is a wasteful number, since it uses less digits than its factorization.

130638838 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7467.

The product of its (nonzero) digits is 82944, while the sum is 40.

The square root of 130638838 is about 11429.7348175712. The cubic root of 130638838 is about 507.4081472889.

The spelling of 130638838 in words is "one hundred thirty million, six hundred thirty-eight thousand, eight hundred thirty-eight".