129460944 has 80 divisors (see below), whose sum is σ = 345602880. Its totient is φ = 41733120.

The previous prime is 129460939. The next prime is 129460973. The reversal of 129460944 is 449064921.

It is a super-2 number, since 2×129460944² = 33520272042742272, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 308767 + ... + 309185.

It is an arithmetic number, because the mean of its divisors is an integer number (4320036).

Almost surely, 2^129460944 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 129460944, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (172801440).

129460944 is an abundant number, since it is smaller than the sum of its proper divisors (216141936).

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

129460944 is a wasteful number, since it uses less digits than its factorization.

129460944 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 628 (or 622 counting only the distinct ones).

The product of its (nonzero) digits is 62208, while the sum is 39.

The square root of 129460944 is about 11378.0905252156. The cubic root of 129460944 is about 505.8785400067.

The spelling of 129460944 in words is "one hundred twenty-nine million, four hundred sixty thousand, nine hundred forty-four".