38928906 has 12 divisors (see below), whose sum is σ = 84346002. Its totient is φ = 12976296.

The previous prime is 38928899. The next prime is 38928907. The reversal of 38928906 is 60982983.

It can be written as a sum of positive squares in only one way, i.e., 34327881 + 4601025 = 5859^2 + 2145^2 .

It is not an unprimeable number, because it can be changed into a prime (38928907) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1081341 + ... + 1081376.

Almost surely, 2^38928906 is an apocalyptic number.

38928906 is an abundant number, since it is smaller than the sum of its proper divisors (45417096).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

38928906 is a wasteful number, since it uses less digits than its factorization.

38928906 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2162725 (or 2162722 counting only the distinct ones).

The product of its (nonzero) digits is 186624, while the sum is 45.

The square root of 38928906 is about 6239.3033264941. The cubic root of 38928906 is about 338.9149550416.

The spelling of 38928906 in words is "thirty-eight million, nine hundred twenty-eight thousand, nine hundred six".