18140410 has 16 divisors (see below), whose sum is σ = 33412896. Its totient is φ = 7087248.

The previous prime is 18140401. The next prime is 18140413. The reversal of 18140410 is 1404181.

It is not an unprimeable number, because it can be changed into a prime (18140413) 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 7 ways as a sum of consecutive naturals, for example, 20664 + ... + 21523.

It is an arithmetic number, because the mean of its divisors is an integer number (2088306).

Almost surely, 2^18140410 is an apocalyptic number.

18140410 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

18140410 is a deficient number, since it is larger than the sum of its proper divisors (15272486).

18140410 is a wasteful number, since it uses less digits than its factorization.

18140410 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42237.

The product of its (nonzero) digits is 128, while the sum is 19.

The square root of 18140410 is about 4259.1560196828. The cubic root of 18140410 is about 262.7538164810.

Adding to 18140410 its reverse (1404181), we get a palindrome (19544591).

The spelling of 18140410 in words is "eighteen million, one hundred forty thousand, four hundred ten".