38918233 has 2 divisors, whose sum is σ = 38918234. Its totient is φ = 38918232.

The previous prime is 38918227. The next prime is 38918263. The reversal of 38918233 is 33281983.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 23299929 + 15618304 = 4827^2 + 3952^2 .

It is a cyclic number.

It is not a de Polignac number, because 38918233 - 2¹³ = 38910041 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 38918192 and 38918201.

It is not a weakly prime, because it can be changed into another prime (38918263) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19459116 + 19459117.

It is an arithmetic number, because the mean of its divisors is an integer number (19459117).

Almost surely, 2^38918233 is an apocalyptic number.

It is an amenable number.

38918233 is a deficient number, since it is larger than the sum of its proper divisors (1).

38918233 is an equidigital number, since it uses as much as digits as its factorization.

38918233 is an evil number, because the sum of its binary digits is even.

The product of its digits is 31104, while the sum is 37.

The square root of 38918233 is about 6238.4479640372. The cubic root of 38918233 is about 338.8839791738.

The spelling of 38918233 in words is "thirty-eight million, nine hundred eighteen thousand, two hundred thirty-three".