17130640 has 20 divisors (see below), whose sum is σ = 39828924. Its totient is φ = 6852224.

The previous prime is 17130623. The next prime is 17130643. The reversal of 17130640 is 4603171.

It can be written as a sum of positive squares in 2 ways, for example, as 8928144 + 8202496 = 2988^2 + 2864^2 .

It is a tau number, because it is divible by the number of its divisors (20).

It is not an unprimeable number, because it can be changed into a prime (17130643) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 106987 + ... + 107146.

Almost surely, 2^17130640 is an apocalyptic number.

17130640 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

17130640 is an abundant number, since it is smaller than the sum of its proper divisors (22698284).

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

17130640 is a wasteful number, since it uses less digits than its factorization.

17130640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 214146 (or 214140 counting only the distinct ones).

The product of its (nonzero) digits is 504, while the sum is 22.

The square root of 17130640 is about 4138.9177329345. The cubic root of 17130640 is about 257.7851304768.

The spelling of 17130640 in words is "seventeen million, one hundred thirty thousand, six hundred forty".