38383231 has 4 divisors (see below), whose sum is σ = 38399752. Its totient is φ = 38366712.

The previous prime is 38383223. The next prime is 38383237. The reversal of 38383231 is 13238383.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 13238383 = 19 ⋅696757.

It is a cyclic number.

It is not a de Polignac number, because 38383231 - 2³ = 38383223 is a prime.

It is a super-2 number, since 2×38383231² = 2946544843998722, 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 = 38383193 and 38383202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38383237) 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, 4065 + ... + 9658.

It is an arithmetic number, because the mean of its divisors is an integer number (9599938).

Almost surely, 2^38383231 is an apocalyptic number.

38383231 is a deficient number, since it is larger than the sum of its proper divisors (16521).

38383231 is a wasteful number, since it uses less digits than its factorization.

38383231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16520.

The product of its digits is 10368, while the sum is 31.

The square root of 38383231 is about 6195.4201633142. The cubic root of 38383231 is about 337.3239495177.

The spelling of 38383231 in words is "thirty-eight million, three hundred eighty-three thousand, two hundred thirty-one".