18799340 has 36 divisors (see below), whose sum is σ = 45926496. Its totient is φ = 6445152.

The previous prime is 18799327. The next prime is 18799343. The reversal of 18799340 is 4399781.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (18799343) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 8612 + ... + 10571.

It is an arithmetic number, because the mean of its divisors is an integer number (1275736).

Almost surely, 2^18799340 is an apocalyptic number.

18799340 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

18799340 is an abundant number, since it is smaller than the sum of its proper divisors (27127156).

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

18799340 is a wasteful number, since it uses less digits than its factorization.

18799340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19206 (or 19197 counting only the distinct ones).

The product of its (nonzero) digits is 54432, while the sum is 41.

The square root of 18799340 is about 4335.8205682431. The cubic root of 18799340 is about 265.8974674080.

The spelling of 18799340 in words is "eighteen million, seven hundred ninety-nine thousand, three hundred forty".