128849064 has 32 divisors (see below), whose sum is σ = 322401120. Its totient is φ = 42912576.

The previous prime is 128849057. The next prime is 128849087. The reversal of 128849064 is 460948821.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 51654 + ... + 54090.

It is an arithmetic number, because the mean of its divisors is an integer number (10075035).

Almost surely, 2^128849064 is an apocalyptic number.

It is an amenable number.

128849064 is an abundant number, since it is smaller than the sum of its proper divisors (193552056).

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

128849064 is a wasteful number, since it uses less digits than its factorization.

128849064 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4649 (or 4645 counting only the distinct ones).

The product of its (nonzero) digits is 110592, while the sum is 42.

The square root of 128849064 is about 11351.1701599439. The cubic root of 128849064 is about 505.0802917787.

The spelling of 128849064 in words is "one hundred twenty-eight million, eight hundred forty-nine thousand, sixty-four".