38393834 has 4 divisors (see below), whose sum is σ = 57590754. Its totient is φ = 19196916.

The previous prime is 38393821. The next prime is 38393843. The reversal of 38393834 is 43839383.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 43839383 = 7 ⋅6262769.

It can be written as a sum of positive squares in only one way, i.e., 28121809 + 10272025 = 5303^2 + 3205^2 .

It is a junction number, because it is equal to n+sod(n) for n = 38393791 and 38393800.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9598457 + ... + 9598460.

Almost surely, 2^38393834 is an apocalyptic number.

38393834 is a deficient number, since it is larger than the sum of its proper divisors (19196920).

38393834 is a wasteful number, since it uses less digits than its factorization.

38393834 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19196919.

The product of its digits is 186624, while the sum is 41.

The square root of 38393834 is about 6196.2758169726. The cubic root of 38393834 is about 337.3550074950.

The spelling of 38393834 in words is "thirty-eight million, three hundred ninety-three thousand, eight hundred thirty-four".