129349402 has 48 divisors (see below), whose sum is σ = 244048896. Its totient is φ = 50068800.

The previous prime is 129349399. The next prime is 129349421. The reversal of 129349402 is 204943921.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 677127 + ... + 677317.

It is an arithmetic number, because the mean of its divisors is an integer number (5084352).

Almost surely, 2^129349402 is an apocalyptic number.

129349402 is a deficient number, since it is larger than the sum of its proper divisors (114699494).

129349402 is a wasteful number, since it uses less digits than its factorization.

129349402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 335 (or 274 counting only the distinct ones).

The product of its (nonzero) digits is 15552, while the sum is 34.

The square root of 129349402 is about 11373.1878556542. The cubic root of 129349402 is about 505.7332119624.

The spelling of 129349402 in words is "one hundred twenty-nine million, three hundred forty-nine thousand, four hundred two".