38542231 has 8 divisors (see below), whose sum is σ = 47436704. Its totient is φ = 30494880.

The previous prime is 38542223. The next prime is 38542237. The reversal of 38542231 is 13224583.

38542231 = T₃₈₉ + T₃₉₀ + ... + T₆₆₁.

38542231 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 38542231 - 2³ = 38542223 is a prime.

It is a super-2 number, since 2×38542231² = 2971007140914722, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 38542231.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38542237) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 211680 + ... + 211861.

It is an arithmetic number, because the mean of its divisors is an integer number (5929588).

Almost surely, 2^38542231 is an apocalyptic number.

38542231 is a deficient number, since it is larger than the sum of its proper divisors (8894473).

38542231 is a wasteful number, since it uses less digits than its factorization.

38542231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 423561.

The product of its digits is 5760, while the sum is 28.

The square root of 38542231 is about 6208.2389612514. The cubic root of 38542231 is about 337.7890885677.

The spelling of 38542231 in words is "thirty-eight million, five hundred forty-two thousand, two hundred thirty-one".