129464580 has 48 divisors (see below), whose sum is σ = 414288000. Its totient is φ = 29591808.

The previous prime is 129464519. The next prime is 129464581. The reversal of 129464580 is 85464921.

It is a super-2 number, since 2×129464580² = 33522154949152800, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (129464581) 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, 153705 + ... + 154544.

It is an arithmetic number, because the mean of its divisors is an integer number (8631000).

Almost surely, 2^129464580 is an apocalyptic number.

129464580 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

129464580 is an abundant number, since it is smaller than the sum of its proper divisors (284823420).

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

129464580 is a wasteful number, since it uses less digits than its factorization.

129464580 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 308268 (or 308266 counting only the distinct ones).

The product of its (nonzero) digits is 69120, while the sum is 39.

The square root of 129464580 is about 11378.2503048579. The cubic root of 129464580 is about 505.8832759450.

The spelling of 129464580 in words is "one hundred twenty-nine million, four hundred sixty-four thousand, five hundred eighty".