128498428 has 12 divisors (see below), whose sum is σ = 230357232. Its totient is φ = 62682080.

The previous prime is 128498417. The next prime is 128498431. The reversal of 128498428 is 824894821.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 391600 + ... + 391927.

It is an arithmetic number, because the mean of its divisors is an integer number (19196436).

Almost surely, 2^128498428 is an apocalyptic number.

It is an amenable number.

128498428 is a deficient number, since it is larger than the sum of its proper divisors (101858804).

128498428 is a wasteful number, since it uses less digits than its factorization.

128498428 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 783572 (or 783570 counting only the distinct ones).

The product of its digits is 294912, while the sum is 46.

The square root of 128498428 is about 11335.7147105950. The cubic root of 128498428 is about 504.6217184751.

The spelling of 128498428 in words is "one hundred twenty-eight million, four hundred ninety-eight thousand, four hundred twenty-eight".