38320229 has 4 divisors (see below), whose sum is σ = 38333376. Its totient is φ = 38307084.

The previous prime is 38320211. The next prime is 38320241. The reversal of 38320229 is 92202383.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 38320229 - 2⁸ = 38319973 is a prime.

It is a super-2 number, since 2×38320229² = 2936879901224882, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38320279) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 29 + ... + 8754.

It is an arithmetic number, because the mean of its divisors is an integer number (9583344).

Almost surely, 2^38320229 is an apocalyptic number.

It is an amenable number.

38320229 is a deficient number, since it is larger than the sum of its proper divisors (13147).

38320229 is an equidigital number, since it uses as much as digits as its factorization.

38320229 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13146.

The product of its (nonzero) digits is 5184, while the sum is 29.

The square root of 38320229 is about 6190.3335128247. Note that the first 3 decimals coincide. The cubic root of 38320229 is about 337.1392879593.

The spelling of 38320229 in words is "thirty-eight million, three hundred twenty thousand, two hundred twenty-nine".