18850329 has 6 divisors (see below), whose sum is σ = 27228266. Its totient is φ = 12566880.

The previous prime is 18850327. The next prime is 18850333. The reversal of 18850329 is 92305881.

It can be written as a sum of positive squares in only one way, i.e., 12960000 + 5890329 = 3600^2 + 2427^2 .

It is not a de Polignac number, because 18850329 - 2¹ = 18850327 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 18850293 and 18850302.

It is not an unprimeable number, because it can be changed into a prime (18850327) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1047232 + ... + 1047249.

Almost surely, 2^18850329 is an apocalyptic number.

It is an amenable number.

18850329 is a deficient number, since it is larger than the sum of its proper divisors (8377937).

18850329 is a wasteful number, since it uses less digits than its factorization.

18850329 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2094487 (or 2094484 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 36.

The square root of 18850329 is about 4341.6965577986. The cubic root of 18850329 is about 266.1376461742.

The spelling of 18850329 in words is "eighteen million, eight hundred fifty thousand, three hundred twenty-nine".