38338738 has 4 divisors (see below), whose sum is σ = 57508110. Its totient is φ = 19169368.

The previous prime is 38338733. The next prime is 38338759. The reversal of 38338738 is 83783383.

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., 29888089 + 8450649 = 5467^2 + 2907^2 .

It is a junction number, because it is equal to n+sod(n) for n = 38338694 and 38338703.

It is not an unprimeable number, because it can be changed into a prime (38338733) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9584683 + ... + 9584686.

Almost surely, 2^38338738 is an apocalyptic number.

38338738 is a deficient number, since it is larger than the sum of its proper divisors (19169372).

38338738 is a wasteful number, since it uses less digits than its factorization.

38338738 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19169371.

The product of its digits is 290304, while the sum is 43.

The square root of 38338738 is about 6191.8283244935. The cubic root of 38338738 is about 337.1935596137.

The spelling of 38338738 in words is "thirty-eight million, three hundred thirty-eight thousand, seven hundred thirty-eight".