129480988 has 24 divisors (see below), whose sum is σ = 278882912. Its totient is φ = 51223104.

The previous prime is 129480977. The next prime is 129480997. The reversal of 129480988 is 889084921.

It is a super-2 number, since 2×129480988² = 33530652506912288, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 177495 + ... + 178222.

Almost surely, 2^129480988 is an apocalyptic number.

It is an amenable number.

129480988 is an abundant number, since it is smaller than the sum of its proper divisors (149401924).

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

129480988 is a wasteful number, since it uses less digits than its factorization.

129480988 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 355741 (or 355739 counting only the distinct ones).

The product of its (nonzero) digits is 331776, while the sum is 49.

The square root of 129480988 is about 11378.9713067570. The cubic root of 129480988 is about 505.9046464804.

The spelling of 129480988 in words is "one hundred twenty-nine million, four hundred eighty thousand, nine hundred eighty-eight".