15830140 has 24 divisors (see below), whose sum is σ = 33353712. Its totient is φ = 6311040.

The previous prime is 15830131. The next prime is 15830159. The reversal of 15830140 is 4103851.

It is a zygodrome in base 2.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 5800 + ... + 8080.

It is an arithmetic number, because the mean of its divisors is an integer number (1389738).

Almost surely, 2^15830140 is an apocalyptic number.

15830140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

15830140 is an abundant number, since it is smaller than the sum of its proper divisors (17523572).

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

15830140 is a wasteful number, since it uses less digits than its factorization.

15830140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2637 (or 2635 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 22.

The square root of 15830140 is about 3978.7108464929. The cubic root of 15830140 is about 251.0893265764.

Adding to 15830140 its reverse (4103851), we get a palindrome (19933991).

The spelling of 15830140 in words is "fifteen million, eight hundred thirty thousand, one hundred forty".