128360388 has 24 divisors (see below), whose sum is σ = 322547008. Its totient is φ = 39495456.

The previous prime is 128360359. The next prime is 128360389. The reversal of 128360388 is 883063821.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is not an unprimeable number, because it can be changed into a prime (128360389) 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, 411256 + ... + 411567.

Almost surely, 2^128360388 is an apocalyptic number.

It is an amenable number.

128360388 is an abundant number, since it is smaller than the sum of its proper divisors (194186620).

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

128360388 is a wasteful number, since it uses less digits than its factorization.

128360388 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 822843 (or 822841 counting only the distinct ones).

The product of its (nonzero) digits is 55296, while the sum is 39.

The square root of 128360388 is about 11329.6243538786. The cubic root of 128360388 is about 504.4409563665.

The spelling of 128360388 in words is "one hundred twenty-eight million, three hundred sixty thousand, three hundred eighty-eight".