128619224 has 16 divisors (see below), whose sum is σ = 242217600. Its totient is φ = 64027872.

The previous prime is 128619223. The next prime is 128619247. The reversal of 128619224 is 422916821.

It is a Smith number, since the sum of its digits (35) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (128619221) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 33272 + ... + 36935.

It is an arithmetic number, because the mean of its divisors is an integer number (15138600).

Almost surely, 2^128619224 is an apocalyptic number.

It is an amenable number.

128619224 is a deficient number, since it is larger than the sum of its proper divisors (113598376).

128619224 is a wasteful number, since it uses less digits than its factorization.

128619224 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70442 (or 70438 counting only the distinct ones).

The product of its digits is 13824, while the sum is 35.

The square root of 128619224 is about 11341.0415747408. The cubic root of 128619224 is about 504.7797935457.

The spelling of 128619224 in words is "one hundred twenty-eight million, six hundred nineteen thousand, two hundred twenty-four".