130678638 has 8 divisors (see below), whose sum is σ = 261357288. Its totient is φ = 43559544.

The previous prime is 130678631. The next prime is 130678649. The reversal of 130678638 is 836876031.

It is a sphenic number, since it is the product of 3 distinct primes.

130678638 is an admirable number.

It is a self number, because there is not a number n which added to its sum of digits gives 130678638.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (130678631) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10889881 + ... + 10889892.

It is an arithmetic number, because the mean of its divisors is an integer number (32669661).

Almost surely, 2^130678638 is an apocalyptic number.

130678638 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

130678638 is a wasteful number, since it uses less digits than its factorization.

130678638 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21779778.

The product of its (nonzero) digits is 145152, while the sum is 42.

The square root of 130678638 is about 11431.4757577489. The cubic root of 130678638 is about 507.4596704911.

The spelling of 130678638 in words is "one hundred thirty million, six hundred seventy-eight thousand, six hundred thirty-eight".