129833828 has 36 divisors (see below), whose sum is σ = 249215232. Its totient is φ = 59111040.

The previous prime is 129833789. The next prime is 129833843. The reversal of 129833828 is 828338921.

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, 34025 + ... + 37647.

Almost surely, 2^129833828 is an apocalyptic number.

It is an amenable number.

129833828 is a deficient number, since it is larger than the sum of its proper divisors (119381404).

129833828 is a wasteful number, since it uses less digits than its factorization.

129833828 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3692 (or 3673 counting only the distinct ones).

The product of its digits is 165888, while the sum is 44.

The square root of 129833828 is about 11394.4647965580. The cubic root of 129833828 is about 506.3637653587.

The spelling of 129833828 in words is "one hundred twenty-nine million, eight hundred thirty-three thousand, eight hundred twenty-eight".