38904745 has 8 divisors (see below), whose sum is σ = 50929920. Its totient is φ = 28294320.

The previous prime is 38904743. The next prime is 38904751. The reversal of 38904745 is 54740983.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 38904745 - 2¹ = 38904743 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 38904698 and 38904707.

It is not an unprimeable number, because it can be changed into a prime (38904743) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 353625 + ... + 353734.

It is an arithmetic number, because the mean of its divisors is an integer number (6366240).

Almost surely, 2^38904745 is an apocalyptic number.

It is an amenable number.

38904745 is a deficient number, since it is larger than the sum of its proper divisors (12025175).

38904745 is a wasteful number, since it uses less digits than its factorization.

38904745 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 707375.

The product of its (nonzero) digits is 120960, while the sum is 40.

The square root of 38904745 is about 6237.3668322458. The cubic root of 38904745 is about 338.8448253299.

The spelling of 38904745 in words is "thirty-eight million, nine hundred four thousand, seven hundred forty-five".