129470620 has 36 divisors (see below), whose sum is σ = 278753832. Its totient is φ = 50512000.

The previous prime is 129470563. The next prime is 129470629. The reversal of 129470620 is 26074921.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (129470629) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 31695 + ... + 35545.

It is an arithmetic number, because the mean of its divisors is an integer number (7743162).

Almost surely, 2^129470620 is an apocalyptic number.

129470620 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 129470620, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (139376916).

129470620 is an abundant number, since it is smaller than the sum of its proper divisors (149283212).

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

129470620 is a wasteful number, since it uses less digits than its factorization.

129470620 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3942 (or 3899 counting only the distinct ones).

The product of its (nonzero) digits is 6048, while the sum is 31.

The square root of 129470620 is about 11378.5157204268. The cubic root of 129470620 is about 505.8911429294.

The spelling of 129470620 in words is "one hundred twenty-nine million, four hundred seventy thousand, six hundred twenty".