128738376 has 192 divisors, whose sum is σ = 409651200. Its totient is φ = 37231488.

The previous prime is 128738359. The next prime is 128738417. The reversal of 128738376 is 673837821.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1013625 + ... + 1013751.

It is an arithmetic number, because the mean of its divisors is an integer number (2133600).

Almost surely, 2^128738376 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 128738376, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (204825600).

128738376 is an abundant number, since it is smaller than the sum of its proper divisors (280912824).

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

128738376 is a wasteful number, since it uses less digits than its factorization.

128738376 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 193 (or 164 counting only the distinct ones).

The product of its digits is 338688, while the sum is 45.

The square root of 128738376 is about 11346.2934917091. The cubic root of 128738376 is about 504.9356203261.

The spelling of 128738376 in words is "one hundred twenty-eight million, seven hundred thirty-eight thousand, three hundred seventy-six".