128433624 has 32 divisors (see below), whose sum is σ = 350274240. Its totient is φ = 38919200.

The previous prime is 128433601. The next prime is 128433629. The reversal of 128433624 is 426334821.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (128433629) 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, 242982 + ... + 243509.

It is an arithmetic number, because the mean of its divisors is an integer number (10946070).

Almost surely, 2^128433624 is an apocalyptic number.

It is an amenable number.

128433624 is an abundant number, since it is smaller than the sum of its proper divisors (221840616).

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

128433624 is a wasteful number, since it uses less digits than its factorization.

128433624 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 486511 (or 486507 counting only the distinct ones).

The product of its digits is 27648, while the sum is 33.

The square root of 128433624 is about 11332.8559507302. The cubic root of 128433624 is about 504.5368743640.

The spelling of 128433624 in words is "one hundred twenty-eight million, four hundred thirty-three thousand, six hundred twenty-four".