129424848 has 40 divisors (see below), whose sum is σ = 382112448. Its totient is φ = 36978432.

The previous prime is 129424843. The next prime is 129424849. The reversal of 129424848 is 848424921.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (129424843) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 192261 + ... + 192932.

Almost surely, 2^129424848 is an apocalyptic number.

It is an amenable number.

129424848 is an abundant number, since it is smaller than the sum of its proper divisors (252687600).

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

129424848 is a wasteful number, since it uses less digits than its factorization.

129424848 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 385211 (or 385205 counting only the distinct ones).

The product of its digits is 147456, while the sum is 42.

The square root of 129424848 is about 11376.5042082355. The cubic root of 129424848 is about 505.8315196762.

The spelling of 129424848 in words is "one hundred twenty-nine million, four hundred twenty-four thousand, eight hundred forty-eight".