129050406 has 24 divisors (see below), whose sum is σ = 289252080. Its totient is φ = 41533296.

The previous prime is 129050399. The next prime is 129050429. The reversal of 129050406 is 604050921.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 129050406.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 123090 + ... + 124133.

It is an arithmetic number, because the mean of its divisors is an integer number (12052170).

Almost surely, 2^129050406 is an apocalyptic number.

129050406 is an abundant number, since it is smaller than the sum of its proper divisors (160201674).

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

129050406 is a wasteful number, since it uses less digits than its factorization.

129050406 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 247260 (or 247257 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 27.

The square root of 129050406 is about 11360.0354752967. The cubic root of 129050406 is about 505.3432375576.

The spelling of 129050406 in words is "one hundred twenty-nine million, fifty thousand, four hundred six".