129476232 has 84 divisors (see below), whose sum is σ = 366444645. Its totient is φ = 42869088.

The previous prime is 129476201. The next prime is 129476251. The reversal of 129476232 is 232674921.

It is a powerful number, because all its prime factors have an exponent greater than 1 and also an Achilles number because it is not a perfect power.

129476232 is a `hidden beast` number, since 1 + 29 + 4 + 7 + 623 + 2 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 106378596 + 23097636 = 10314^2 + 4806^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=8046.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 20 ways as a sum of consecutive naturals, for example, 868894 + ... + 869042.

Almost surely, 2^129476232 is an apocalyptic number.

129476232 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 129476232

129476232 is an abundant number, since it is smaller than the sum of its proper divisors (236968413).

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

129476232 is an frugal number, since it uses more digits than its factorization.

129476232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 322 (or 154 counting only the distinct ones).

The product of its digits is 36288, while the sum is 36.

The square root of 129476232 is about 11378.7623228539. The cubic root of 129476232 is about 505.8984522326.

The spelling of 129476232 in words is "one hundred twenty-nine million, four hundred seventy-six thousand, two hundred thirty-two".