129299464 has 16 divisors (see below), whose sum is σ = 277070400. Its totient is φ = 55414032.

The previous prime is 129299447. The next prime is 129299473. The reversal of 129299464 is 464992921.

It is a happy number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1154404 + ... + 1154515.

It is an arithmetic number, because the mean of its divisors is an integer number (17316900).

Almost surely, 2^129299464 is an apocalyptic number.

129299464 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

129299464 is an abundant number, since it is smaller than the sum of its proper divisors (147770936).

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

129299464 is a wasteful number, since it uses less digits than its factorization.

129299464 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2308932 (or 2308928 counting only the distinct ones).

The product of its digits is 279936, while the sum is 46.

The square root of 129299464 is about 11370.9922170407. The cubic root of 129299464 is about 505.6681206785.

The spelling of 129299464 in words is "one hundred twenty-nine million, two hundred ninety-nine thousand, four hundred sixty-four".