140530830 has 32 divisors (see below), whose sum is σ = 367936128. Its totient is φ = 34068000.

The previous prime is 140530829. The next prime is 140530867. The reversal of 140530830 is 38035041.

It is a self number, because there is not a number n which added to its sum of digits gives 140530830.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 212596 + ... + 213255.

It is an arithmetic number, because the mean of its divisors is an integer number (11498004).

Almost surely, 2^140530830 is an apocalyptic number.

140530830 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

140530830 is an abundant number, since it is smaller than the sum of its proper divisors (227405298).

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

140530830 is a wasteful number, since it uses less digits than its factorization.

140530830 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 425872.

The product of its (nonzero) digits is 1440, while the sum is 24.

The square root of 140530830 is about 11854.5700048547. The cubic root of 140530830 is about 519.9048519205.

Adding to 140530830 its reverse (38035041), we get a palindrome (178565871).

The spelling of 140530830 in words is "one hundred forty million, five hundred thirty thousand, eight hundred thirty".