130979238 has 64 divisors (see below), whose sum is σ = 291174912. Its totient is φ = 39029760.

The previous prime is 130979209. The next prime is 130979239. The reversal of 130979238 is 832979031.

It is a self number, because there is not a number n which added to its sum of digits gives 130979238.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (130979239) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 370870 + ... + 371222.

It is an arithmetic number, because the mean of its divisors is an integer number (4549608).

Almost surely, 2^130979238 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 130979238, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (145587456).

130979238 is an abundant number, since it is smaller than the sum of its proper divisors (160195674).

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

130979238 is a wasteful number, since it uses less digits than its factorization.

130979238 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 509.

The product of its (nonzero) digits is 81648, while the sum is 42.

The square root of 130979238 is about 11444.6161141386. The cubic root of 130979238 is about 507.8484755887.

The spelling of 130979238 in words is "one hundred thirty million, nine hundred seventy-nine thousand, two hundred thirty-eight".