129828430 has 32 divisors (see below), whose sum is σ = 237593088. Its totient is φ = 51072000.

The previous prime is 129828421. The next prime is 129828431. The reversal of 129828430 is 34828921.

It is a self number, because there is not a number n which added to its sum of digits gives 129828430.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (129828431) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 192574 + ... + 193246.

It is an arithmetic number, because the mean of its divisors is an integer number (7424784).

Almost surely, 2^129828430 is an apocalyptic number.

129828430 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

129828430 is a deficient number, since it is larger than the sum of its proper divisors (107764658).

129828430 is a wasteful number, since it uses less digits than its factorization.

129828430 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 972.

The product of its (nonzero) digits is 27648, while the sum is 37.

The square root of 129828430 is about 11394.2279246994. The cubic root of 129828430 is about 506.3567476974.

It can be divided in two parts, 12982 and 8430, that added together give a palindrome (21412).

The spelling of 129828430 in words is "one hundred twenty-nine million, eight hundred twenty-eight thousand, four hundred thirty".