38533231 has 4 divisors (see below), whose sum is σ = 42036264. Its totient is φ = 35030200.

The previous prime is 38533223. The next prime is 38533259. The reversal of 38533231 is 13233583.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 38533231 - 2³ = 38533223 is a prime.

It is a super-2 number, since 2×38533231² = 2969619782598722, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 38533231.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38533531) 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, 1751500 + ... + 1751521.

It is an arithmetic number, because the mean of its divisors is an integer number (10509066).

Almost surely, 2^38533231 is an apocalyptic number.

38533231 is a deficient number, since it is larger than the sum of its proper divisors (3503033).

38533231 is a wasteful number, since it uses less digits than its factorization.

38533231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3503032.

The product of its digits is 6480, while the sum is 28.

The square root of 38533231 is about 6207.5140756989. The cubic root of 38533231 is about 337.7627941336.

The spelling of 38533231 in words is "thirty-eight million, five hundred thirty-three thousand, two hundred thirty-one".