128175340 has 24 divisors (see below), whose sum is σ = 270137952. Its totient is φ = 51085440.

The previous prime is 128175287. The next prime is 128175347. The reversal of 128175340 is 43571821.

It is not an unprimeable number, because it can be changed into a prime (128175347) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5784 + ... + 17023.

It is an arithmetic number, because the mean of its divisors is an integer number (11255748).

Almost surely, 2^128175340 is an apocalyptic number.

128175340 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

128175340 is an abundant number, since it is smaller than the sum of its proper divisors (141962612).

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

128175340 is a wasteful number, since it uses less digits than its factorization.

128175340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23097 (or 23095 counting only the distinct ones).

The product of its (nonzero) digits is 6720, while the sum is 31.

The square root of 128175340 is about 11321.4548535071. The cubic root of 128175340 is about 504.1984342921.

The spelling of 128175340 in words is "one hundred twenty-eight million, one hundred seventy-five thousand, three hundred forty".