38928745 has 4 divisors (see below), whose sum is σ = 46714500. Its totient is φ = 31142992.

The previous prime is 38928707. The next prime is 38928763. The reversal of 38928745 is 54782983.

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 28611801 + 10316944 = 5349^2 + 3212^2 .

It is a cyclic number.

It is not a de Polignac number, because 38928745 - 2¹⁵ = 38895977 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 38928695 and 38928704.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3892870 + ... + 3892879.

It is an arithmetic number, because the mean of its divisors is an integer number (11678625).

Almost surely, 2^38928745 is an apocalyptic number.

It is an amenable number.

38928745 is a deficient number, since it is larger than the sum of its proper divisors (7785755).

38928745 is an equidigital number, since it uses as much as digits as its factorization.

38928745 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7785754.

The product of its digits is 483840, while the sum is 46.

The square root of 38928745 is about 6239.2904243992. The cubic root of 38928745 is about 338.9144878191.

The spelling of 38928745 in words is "thirty-eight million, nine hundred twenty-eight thousand, seven hundred forty-five".