128855488 has 14 divisors (see below), whose sum is σ = 255697736. Its totient is φ = 64427712.

The previous prime is 128855459. The next prime is 128855491. The reversal of 128855488 is 884558821.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1006620 + ... + 1006747.

It is an arithmetic number, because the mean of its divisors is an integer number (18264124).

Almost surely, 2^128855488 is an apocalyptic number.

It is an amenable number.

128855488 is a deficient number, since it is larger than the sum of its proper divisors (126842248).

128855488 is an equidigital number, since it uses as much as digits as its factorization.

128855488 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2013379 (or 2013369 counting only the distinct ones).

The product of its digits is 819200, while the sum is 49.

The square root of 128855488 is about 11351.4531228385. The cubic root of 128855488 is about 505.0886855323.

The spelling of 128855488 in words is "one hundred twenty-eight million, eight hundred fifty-five thousand, four hundred eighty-eight".