129620346 has 16 divisors (see below), whose sum is σ = 259516224. Its totient is φ = 43160864.

The previous prime is 129620329. The next prime is 129620357. The reversal of 129620346 is 643026921.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5091 + ... + 16886.

It is an arithmetic number, because the mean of its divisors is an integer number (16219764).

Almost surely, 2^129620346 is an apocalyptic number.

129620346 is an abundant number, since it is smaller than the sum of its proper divisors (129895878).

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

129620346 is a wasteful number, since it uses less digits than its factorization.

129620346 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22965.

The product of its (nonzero) digits is 15552, while the sum is 33.

The square root of 129620346 is about 11385.0931484990. The cubic root of 129620346 is about 506.0860800191.

The spelling of 129620346 in words is "one hundred twenty-nine million, six hundred twenty thousand, three hundred forty-six".