128429624 has 8 divisors (see below), whose sum is σ = 240805560. Its totient is φ = 64214808.

The previous prime is 128429597. The next prime is 128429629. The reversal of 128429624 is 426924821.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (128429629) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8026844 + ... + 8026859.

It is an arithmetic number, because the mean of its divisors is an integer number (30100695).

Almost surely, 2^128429624 is an apocalyptic number.

It is an amenable number.

128429624 is a deficient number, since it is larger than the sum of its proper divisors (112375936).

128429624 is a wasteful number, since it uses less digits than its factorization.

128429624 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16053709 (or 16053705 counting only the distinct ones).

The product of its digits is 55296, while the sum is 38.

The square root of 128429624 is about 11332.6794713342. The cubic root of 128429624 is about 504.5316364614.

The spelling of 128429624 in words is "one hundred twenty-eight million, four hundred twenty-nine thousand, six hundred twenty-four".