129454884 has 72 divisors (see below), whose sum is σ = 363813632. Its totient is φ = 38543040.

The previous prime is 129454883. The next prime is 129454891. The reversal of 129454884 is 488454921.

129454884 is a `hidden beast` number, since 1 + 29 + 4 + 548 + 84 = 666.

It is not an unprimeable number, because it can be changed into a prime (129454883) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 10047 + ... + 18969.

Almost surely, 2^129454884 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 129454884, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (181906816).

129454884 is an abundant number, since it is smaller than the sum of its proper divisors (234358748).

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

129454884 is a wasteful number, since it uses less digits than its factorization.

129454884 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8977 (or 8972 counting only the distinct ones).

The product of its digits is 368640, while the sum is 45.

The square root of 129454884 is about 11377.8242208254. The cubic root of 129454884 is about 505.8706465790.

The spelling of 129454884 in words is "one hundred twenty-nine million, four hundred fifty-four thousand, eight hundred eighty-four".