129374334 has 40 divisors (see below), whose sum is σ = 292801608. Its totient is φ = 42692400.

The previous prime is 129374327. The next prime is 129374339. The reversal of 129374334 is 433473921.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (129374339) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 12409 + ... + 20315.

Almost surely, 2^129374334 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 129374334, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (146400804).

129374334 is an abundant number, since it is smaller than the sum of its proper divisors (163427274).

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

129374334 is a wasteful number, since it uses less digits than its factorization.

129374334 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8022 (or 8013 counting only the distinct ones).

The product of its digits is 54432, while the sum is 36.

The square root of 129374334 is about 11374.2838895466. The cubic root of 129374334 is about 505.7657031071.

It can be divided in two parts, 12937 and 4334, that added together give a palindrome (17271).

The spelling of 129374334 in words is "one hundred twenty-nine million, three hundred seventy-four thousand, three hundred thirty-four".