38284745 has 4 divisors (see below), whose sum is σ = 45941700. Its totient is φ = 30627792.

The previous prime is 38284733. The next prime is 38284747. The reversal of 38284745 is 54748283.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 14235529 + 24049216 = 3773^2 + 4904^2 .

It is a cyclic number.

It is not a de Polignac number, because 38284745 - 2⁶ = 38284681 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (38284747) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3828470 + ... + 3828479.

It is an arithmetic number, because the mean of its divisors is an integer number (11485425).

Almost surely, 2^38284745 is an apocalyptic number.

It is an amenable number.

38284745 is a deficient number, since it is larger than the sum of its proper divisors (7656955).

38284745 is an equidigital number, since it uses as much as digits as its factorization.

38284745 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7656954.

The product of its digits is 215040, while the sum is 41.

The square root of 38284745 is about 6187.4667675875. The cubic root of 38284745 is about 337.0351937229.

The spelling of 38284745 in words is "thirty-eight million, two hundred eighty-four thousand, seven hundred forty-five".