38545939 has 4 divisors (see below), whose sum is σ = 39199320. Its totient is φ = 37892560.

The previous prime is 38545933. The next prime is 38545963. The reversal of 38545939 is 93954583.

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 38545939 - 2⁹ = 38545427 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (38545933) 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, 326602 + ... + 326719.

It is an arithmetic number, because the mean of its divisors is an integer number (9799830).

Almost surely, 2^38545939 is an apocalyptic number.

38545939 is a deficient number, since it is larger than the sum of its proper divisors (653381).

38545939 is an equidigital number, since it uses as much as digits as its factorization.

38545939 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 653380.

The product of its digits is 583200, while the sum is 46.

The square root of 38545939 is about 6208.5375894811. The cubic root of 38545939 is about 337.7999206839.

The spelling of 38545939 in words is "thirty-eight million, five hundred forty-five thousand, nine hundred thirty-nine".