38329821 has 16 divisors (see below), whose sum is σ = 59774400. Its totient is φ = 24207984.

The previous prime is 38329801. The next prime is 38329831. The reversal of 38329821 is 12892383.

It is a happy number.

It is not a de Polignac number, because 38329821 - 2⁶ = 38329757 is a prime.

It is a plaindrome in base 16.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38329801) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 36846 + ... + 37871.

It is an arithmetic number, because the mean of its divisors is an integer number (3735900).

Almost surely, 2^38329821 is an apocalyptic number.

It is an amenable number.

38329821 is a deficient number, since it is larger than the sum of its proper divisors (21444579).

38329821 is a wasteful number, since it uses less digits than its factorization.

38329821 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 74745 (or 74739 counting only the distinct ones).

The product of its digits is 20736, while the sum is 36.

The square root of 38329821 is about 6191.1082206662. The cubic root of 38329821 is about 337.1674155771.

The spelling of 38329821 in words is "thirty-eight million, three hundred twenty-nine thousand, eight hundred twenty-one".