129284404 has 12 divisors (see below), whose sum is σ = 231061824. Its totient is φ = 63266744.

The previous prime is 129284347. The next prime is 129284429. The reversal of 129284404 is 404482921.

It is a self number, because there is not a number n which added to its sum of digits gives 129284404.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 343654 + ... + 344029.

It is an arithmetic number, because the mean of its divisors is an integer number (19255152).

Almost surely, 2^129284404 is an apocalyptic number.

It is an amenable number.

129284404 is a deficient number, since it is larger than the sum of its proper divisors (101777420).

129284404 is a wasteful number, since it uses less digits than its factorization.

129284404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 687734 (or 687732 counting only the distinct ones).

The product of its (nonzero) digits is 18432, while the sum is 34.

The square root of 129284404 is about 11370.3299864164. The cubic root of 129284404 is about 505.6484875536.

The spelling of 129284404 in words is "one hundred twenty-nine million, two hundred eighty-four thousand, four hundred four".