38911849 has 4 divisors (see below), whose sum is σ = 39150736. Its totient is φ = 38672964.

The previous prime is 38911843. The next prime is 38911853. The reversal of 38911849 is 94811983.

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.

It is a cyclic number.

It is not a de Polignac number, because 38911849 - 2⁷ = 38911721 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (38911843) 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, 119199 + ... + 119524.

It is an arithmetic number, because the mean of its divisors is an integer number (9787684).

Almost surely, 2^38911849 is an apocalyptic number.

It is an amenable number.

38911849 is a deficient number, since it is larger than the sum of its proper divisors (238887).

38911849 is a wasteful number, since it uses less digits than its factorization.

38911849 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 238886.

The product of its digits is 62208, while the sum is 43.

The square root of 38911849 is about 6237.9362773276. The cubic root of 38911849 is about 338.8654484110.

The spelling of 38911849 in words is "thirty-eight million, nine hundred eleven thousand, eight hundred forty-nine".