128670948 has 72 divisors (see below), whose sum is σ = 374529792. Its totient is φ = 36484992.

The previous prime is 128670937. The next prime is 128670959. The reversal of 128670948 is 849076821.

It is an interprime number because it is at equal distance from previous prime (128670937) and next prime (128670959).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 32661 + ... + 36387.

Almost surely, 2^128670948 is an apocalyptic number.

128670948 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 128670948, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (187264896).

128670948 is an abundant number, since it is smaller than the sum of its proper divisors (245858844).

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

128670948 is a wasteful number, since it uses less digits than its factorization.

128670948 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3881 (or 3876 counting only the distinct ones).

The product of its (nonzero) digits is 193536, while the sum is 45.

The square root of 128670948 is about 11343.3217357175. The cubic root of 128670948 is about 504.8474499195.

The spelling of 128670948 in words is "one hundred twenty-eight million, six hundred seventy thousand, nine hundred forty-eight".