128470648 has 8 divisors (see below), whose sum is σ = 240882480. Its totient is φ = 64235320.

The previous prime is 128470633. The next prime is 128470673. The reversal of 128470648 is 846074821.

It is a tau number, because it is divible by the number of its divisors (8).

It is a self number, because there is not a number n which added to its sum of digits gives 128470648.

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, 8029408 + ... + 8029423.

It is an arithmetic number, because the mean of its divisors is an integer number (30110310).

Almost surely, 2^128470648 is an apocalyptic number.

It is an amenable number.

128470648 is a deficient number, since it is larger than the sum of its proper divisors (112411832).

128470648 is a wasteful number, since it uses less digits than its factorization.

128470648 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16058837 (or 16058833 counting only the distinct ones).

The product of its (nonzero) digits is 86016, while the sum is 40.

The square root of 128470648 is about 11334.4893135950. The cubic root of 128470648 is about 504.5853512295.

The spelling of 128470648 in words is "one hundred twenty-eight million, four hundred seventy thousand, six hundred forty-eight".