129420352 has 28 divisors (see below), whose sum is σ = 259232400. Its totient is φ = 64102016.

The previous prime is 129420341. The next prime is 129420367. The reversal of 129420352 is 253024921.

It is a self number, because there is not a number n which added to its sum of digits gives 129420352.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2602 + ... + 16297.

It is an arithmetic number, because the mean of its divisors is an integer number (9258300).

Almost surely, 2^129420352 is an apocalyptic number.

It is an amenable number.

129420352 is an abundant number, since it is smaller than the sum of its proper divisors (129812048).

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

129420352 is a wasteful number, since it uses less digits than its factorization.

129420352 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19018 (or 19008 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 28.

The square root of 129420352 is about 11376.3066062760. The cubic root of 129420352 is about 505.8256623649.

The spelling of 129420352 in words is "one hundred twenty-nine million, four hundred twenty thousand, three hundred fifty-two".