128240624 has 10 divisors (see below), whose sum is σ = 248466240. Its totient is φ = 64120304.

The previous prime is 128240599. The next prime is 128240627. The reversal of 128240624 is 426042821.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (128240627) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4007504 + ... + 4007535.

It is an arithmetic number, because the mean of its divisors is an integer number (24846624).

Almost surely, 2^128240624 is an apocalyptic number.

It is an amenable number.

128240624 is a deficient number, since it is larger than the sum of its proper divisors (120225616).

128240624 is an equidigital number, since it uses as much as digits as its factorization.

128240624 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8015047 (or 8015041 counting only the distinct ones).

The product of its (nonzero) digits is 6144, while the sum is 29.

The square root of 128240624 is about 11324.3376848273. The cubic root of 128240624 is about 504.2840214878.

The spelling of 128240624 in words is "one hundred twenty-eight million, two hundred forty thousand, six hundred twenty-four".