38740238 has 4 divisors (see below), whose sum is σ = 58110360. Its totient is φ = 19370118.

The previous prime is 38740231. The next prime is 38740241. The reversal of 38740238 is 83204783.

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

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 38740198 and 38740207.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38740231) by changing a digit.

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, 9685058 + ... + 9685061.

It is an arithmetic number, because the mean of its divisors is an integer number (14527590).

Almost surely, 2^38740238 is an apocalyptic number.

38740238 is a deficient number, since it is larger than the sum of its proper divisors (19370122).

38740238 is a wasteful number, since it uses less digits than its factorization.

38740238 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19370121.

The product of its (nonzero) digits is 32256, while the sum is 35.

The square root of 38740238 is about 6224.1656468960. The cubic root of 38740238 is about 338.3665537738.

The spelling of 38740238 in words is "thirty-eight million, seven hundred forty thousand, two hundred thirty-eight".