17128140 has 24 divisors (see below), whose sum is σ = 47958960. Its totient is φ = 4567488.

The previous prime is 17128127. The next prime is 17128141. The reversal of 17128140 is 4182171.

It is a self number, because there is not a number n which added to its sum of digits gives 17128140.

It is not an unprimeable number, because it can be changed into a prime (17128141) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 142675 + ... + 142794.

It is an arithmetic number, because the mean of its divisors is an integer number (1998290).

Almost surely, 2^17128140 is an apocalyptic number.

17128140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

17128140 is an abundant number, since it is smaller than the sum of its proper divisors (30830820).

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

17128140 is a wasteful number, since it uses less digits than its factorization.

17128140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 285481 (or 285479 counting only the distinct ones).

The product of its (nonzero) digits is 448, while the sum is 24.

The square root of 17128140 is about 4138.6157105970. The cubic root of 17128140 is about 257.7725897082.

The spelling of 17128140 in words is "seventeen million, one hundred twenty-eight thousand, one hundred forty".