129960376 has 64 divisors (see below), whose sum is σ = 317580480. Its totient is φ = 48384000.

The previous prime is 129960371. The next prime is 129960403. The reversal of 129960376 is 673069921.

It is a super-2 number, since 2×129960376² = 33779398660122752, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (129960371) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7126 + ... + 17626.

It is an arithmetic number, because the mean of its divisors is an integer number (4962195).

Almost surely, 2^129960376 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 129960376, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (158790240).

129960376 is an abundant number, since it is smaller than the sum of its proper divisors (187620104).

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

129960376 is a wasteful number, since it uses less digits than its factorization.

129960376 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10544 (or 10540 counting only the distinct ones).

The product of its (nonzero) digits is 122472, while the sum is 43.

The square root of 129960376 is about 11400.0164912161. The cubic root of 129960376 is about 506.5282281823.

The spelling of 129960376 in words is "one hundred twenty-nine million, nine hundred sixty thousand, three hundred seventy-six".