129626464 has 48 divisors (see below), whose sum is σ = 283013136. Its totient is φ = 57945600.

The previous prime is 129626443. The next prime is 129626477. The reversal of 129626464 is 464626921.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18454 + ... + 24490.

It is an arithmetic number, because the mean of its divisors is an integer number (5896107).

Almost surely, 2^129626464 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 129626464, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (141506568).

129626464 is an abundant number, since it is smaller than the sum of its proper divisors (153386672).

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

129626464 is a wasteful number, since it uses less digits than its factorization.

129626464 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6119 (or 6111 counting only the distinct ones).

The product of its digits is 124416, while the sum is 40.

The square root of 129626464 is about 11385.3618299991. The cubic root of 129626464 is about 506.0940422103.

The spelling of 129626464 in words is "one hundred twenty-nine million, six hundred twenty-six thousand, four hundred sixty-four".