38705945 has 16 divisors (see below), whose sum is σ = 49183680. Its totient is φ = 29160000.

The previous prime is 38705939. The next prime is 38705993. The reversal of 38705945 is 54950783.

38705945 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 38705945 - 2⁴ = 38705929 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 16070 + ... + 18320.

It is an arithmetic number, because the mean of its divisors is an integer number (3073980).

Almost surely, 2^38705945 is an apocalyptic number.

It is an amenable number.

38705945 is a deficient number, since it is larger than the sum of its proper divisors (10477735).

38705945 is a wasteful number, since it uses less digits than its factorization.

38705945 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2456.

The product of its (nonzero) digits is 151200, while the sum is 41.

The square root of 38705945 is about 6221.4102099122. The cubic root of 38705945 is about 338.2666831969.

The spelling of 38705945 in words is "thirty-eight million, seven hundred five thousand, nine hundred forty-five".