140830418 has 8 divisors (see below), whose sum is σ = 216158448. Its totient is φ = 68777604.

The previous prime is 140830411. The next prime is 140830421. The reversal of 140830418 is 814038041.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a Curzon number.

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 3 ways as a sum of consecutive naturals, for example, 818696 + ... + 818867.

It is an arithmetic number, because the mean of its divisors is an integer number (27019806).

Almost surely, 2^140830418 is an apocalyptic number.

140830418 is a deficient number, since it is larger than the sum of its proper divisors (75328030).

140830418 is a wasteful number, since it uses less digits than its factorization.

140830418 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1637608.

The product of its (nonzero) digits is 3072, while the sum is 29.

The square root of 140830418 is about 11867.1992483484. The cubic root of 140830418 is about 520.2740394811.

Adding to 140830418 its reverse (814038041), we get a palindrome (954868459).

The spelling of 140830418 in words is "one hundred forty million, eight hundred thirty thousand, four hundred eighteen".