18943082 has 8 divisors (see below), whose sum is σ = 28533252. Its totient is φ = 9432000.

The previous prime is 18943081. The next prime is 18943087. The reversal of 18943082 is 28034981.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 18931201 + 11881 = 4351^2 + 109^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (18943081) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 19169 + ... + 20132.

Almost surely, 2^18943082 is an apocalyptic number.

18943082 is a deficient number, since it is larger than the sum of its proper divisors (9590170).

18943082 is a wasteful number, since it uses less digits than its factorization.

18943082 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39544.

The product of its (nonzero) digits is 13824, while the sum is 35.

The square root of 18943082 is about 4352.3651041704. The cubic root of 18943082 is about 266.5734420660.

The spelling of 18943082 in words is "eighteen million, nine hundred forty-three thousand, eighty-two".