38440238 has 8 divisors (see below), whose sum is σ = 57866400. Its totient is φ = 19151440.

The previous prime is 38440231. The next prime is 38440277. The reversal of 38440238 is 83204483.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38440231) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 33638 + ... + 34761.

It is an arithmetic number, because the mean of its divisors is an integer number (7233300).

Almost surely, 2^38440238 is an apocalyptic number.

38440238 is a deficient number, since it is larger than the sum of its proper divisors (19426162).

38440238 is a wasteful number, since it uses less digits than its factorization.

38440238 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68682.

The product of its (nonzero) digits is 18432, while the sum is 32.

The square root of 38440238 is about 6200.0191935187. The cubic root of 38440238 is about 337.4908654135.

The spelling of 38440238 in words is "thirty-eight million, four hundred forty thousand, two hundred thirty-eight".