38040231 has 4 divisors (see below), whose sum is σ = 50720312. Its totient is φ = 25360152.

The previous prime is 38040217. The next prime is 38040253. The reversal of 38040231 is 13204083.

It is a happy number.

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

It is not a de Polignac number, because 38040231 - 2¹⁰ = 38039207 is a prime.

It is a super-2 number, since 2×38040231² = 2894118349066722, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 38040198 and 38040207.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38040281) 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, 6340036 + ... + 6340041.

It is an arithmetic number, because the mean of its divisors is an integer number (12680078).

Almost surely, 2^38040231 is an apocalyptic number.

38040231 is a deficient number, since it is larger than the sum of its proper divisors (12680081).

38040231 is a wasteful number, since it uses less digits than its factorization.

38040231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12680080.

The product of its (nonzero) digits is 576, while the sum is 21.

The square root of 38040231 is about 6167.6763047358. The cubic root of 38040231 is about 336.3161441259.

The spelling of 38040231 in words is "thirty-eight million, forty thousand, two hundred thirty-one".