129426884 has 24 divisors (see below), whose sum is σ = 238291200. Its totient is φ = 61419680.

The previous prime is 129426877. The next prime is 129426887. The reversal of 129426884 is 488624921.

It is not an unprimeable number, because it can be changed into a prime (129426887) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2612 + ... + 16299.

It is an arithmetic number, because the mean of its divisors is an integer number (9928800).

Almost surely, 2^129426884 is an apocalyptic number.

It is an amenable number.

129426884 is a deficient number, since it is larger than the sum of its proper divisors (108864316).

129426884 is a wasteful number, since it uses less digits than its factorization.

129426884 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19003 (or 19001 counting only the distinct ones).

The product of its digits is 221184, while the sum is 44.

The square root of 129426884 is about 11376.5936905561. The cubic root of 129426884 is about 505.8341720972.

The spelling of 129426884 in words is "one hundred twenty-nine million, four hundred twenty-six thousand, eight hundred eighty-four".