38860945 has 4 divisors (see below), whose sum is σ = 46633140. Its totient is φ = 31088752.

The previous prime is 38860937. The next prime is 38861003. The reversal of 38860945 is 54906883.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 54906883 = 2087 ⋅26309.

It can be written as a sum of positive squares in 2 ways, for example, as 6507601 + 32353344 = 2551^2 + 5688^2 .

It is a cyclic number.

It is not a de Polignac number, because 38860945 - 2³ = 38860937 is a prime.

It is an unprimeable number.

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, 3886090 + ... + 3886099.

It is an arithmetic number, because the mean of its divisors is an integer number (11658285).

Almost surely, 2^38860945 is an apocalyptic number.

It is an amenable number.

38860945 is a deficient number, since it is larger than the sum of its proper divisors (7772195).

38860945 is an equidigital number, since it uses as much as digits as its factorization.

38860945 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7772194.

The product of its (nonzero) digits is 207360, while the sum is 43.

The square root of 38860945 is about 6233.8547464631. The cubic root of 38860945 is about 338.7176173981.

The spelling of 38860945 in words is "thirty-eight million, eight hundred sixty thousand, nine hundred forty-five".