38912738 has 4 divisors (see below), whose sum is σ = 58369110. Its totient is φ = 19456368.

The previous prime is 38912689. The next prime is 38912743. The reversal of 38912738 is 83721983.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 34656769 + 4255969 = 5887^2 + 2063^2 .

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 38912695 and 38912704.

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 as a sum of consecutive naturals, namely, 9728183 + ... + 9728186.

Almost surely, 2^38912738 is an apocalyptic number.

38912738 is a deficient number, since it is larger than the sum of its proper divisors (19456372).

38912738 is a wasteful number, since it uses less digits than its factorization.

38912738 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19456371.

The product of its digits is 72576, while the sum is 41.

The square root of 38912738 is about 6238.0075344616. The cubic root of 38912738 is about 338.8680290225.

The spelling of 38912738 in words is "thirty-eight million, nine hundred twelve thousand, seven hundred thirty-eight".