140830417 has 24 divisors (see below), whose sum is σ = 176378048. Its totient is φ = 109499040.

The previous prime is 140830411. The next prime is 140830421. The reversal of 140830417 is 714038041.

It is not a de Polignac number, because 140830417 - 2¹⁹ = 140306129 is a prime.

It is not an unprimeable number, because it can be changed into a prime (140830411) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 458578 + ... + 458884.

Almost surely, 2^140830417 is an apocalyptic number.

It is an amenable number.

140830417 is a deficient number, since it is larger than the sum of its proper divisors (35547631).

140830417 is an equidigital number, since it uses as much as digits as its factorization.

140830417 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 469 (or 398 counting only the distinct ones).

The product of its (nonzero) digits is 2688, while the sum is 28.

The square root of 140830417 is about 11867.1992062154. The cubic root of 140830417 is about 520.2740382497.

Adding to 140830417 its reverse (714038041), we get a palindrome (854868458).

The spelling of 140830417 in words is "one hundred forty million, eight hundred thirty thousand, four hundred seventeen".