128374224 has 180 divisors, whose sum is σ = 393037344. Its totient is φ = 36009600.

The previous prime is 128374219. The next prime is 128374229. The reversal of 128374224 is 422473821.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (128374219) and next prime (128374229).

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (128374229) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 4141089 + ... + 4141119.

Almost surely, 2^128374224 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 128374224, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (196518672).

128374224 is an abundant number, since it is smaller than the sum of its proper divisors (264663120).

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

128374224 is a wasteful number, since it uses less digits than its factorization.

128374224 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 118 (or 70 counting only the distinct ones).

The product of its digits is 21504, while the sum is 33.

The square root of 128374224 is about 11330.2349490203. The cubic root of 128374224 is about 504.4590803231.

The spelling of 128374224 in words is "one hundred twenty-eight million, three hundred seventy-four thousand, two hundred twenty-four".