18823396 has 6 divisors (see below), whose sum is σ = 32940950. Its totient is φ = 9411696.

The previous prime is 18823367. The next prime is 18823397. The reversal of 18823396 is 69332881.

It can be written as a sum of positive squares in only one way, i.e., 18800896 + 22500 = 4336^2 + 150^2 .

It is not an unprimeable number, because it can be changed into a prime (18823397) 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 as a sum of consecutive naturals, namely, 2352921 + ... + 2352928.

Almost surely, 2^18823396 is an apocalyptic number.

It is an amenable number.

18823396 is a deficient number, since it is larger than the sum of its proper divisors (14117554).

18823396 is a wasteful number, since it uses less digits than its factorization.

18823396 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4705853 (or 4705851 counting only the distinct ones).

The product of its digits is 62208, while the sum is 40.

The square root of 18823396 is about 4338.5937813997. The cubic root of 18823396 is about 266.0108349177.

The spelling of 18823396 in words is "eighteen million, eight hundred twenty-three thousand, three hundred ninety-six".