128885488 has 40 divisors (see below), whose sum is σ = 254983680. Its totient is φ = 63096000.

The previous prime is 128885479. The next prime is 128885503. The reversal of 128885488 is 884588821.

It is a super-2 number, since 2×128885488² = 33222938033996288, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 268833 + ... + 269311.

It is an arithmetic number, because the mean of its divisors is an integer number (6374592).

Almost surely, 2^128885488 is an apocalyptic number.

It is an amenable number.

128885488 is a deficient number, since it is larger than the sum of its proper divisors (126098192).

128885488 is a wasteful number, since it uses less digits than its factorization.

128885488 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 805 (or 799 counting only the distinct ones).

The product of its digits is 1310720, while the sum is 52.

The square root of 128885488 is about 11352.7744626589. The cubic root of 128885488 is about 505.1278805639.

The spelling of 128885488 in words is "one hundred twenty-eight million, eight hundred eighty-five thousand, four hundred eighty-eight".