38947941 has 6 divisors (see below), whose sum is σ = 56258150. Its totient is φ = 25965288.

The previous prime is 38947903. The next prime is 38947943. The reversal of 38947941 is 14974983.

It can be written as a sum of positive squares in only one way, i.e., 28196100 + 10751841 = 5310^2 + 3279^2 .

It is not a de Polignac number, because 38947941 - 2⁶ = 38947877 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38947943) 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 5 ways as a sum of consecutive naturals, for example, 2163766 + ... + 2163783.

Almost surely, 2^38947941 is an apocalyptic number.

It is an amenable number.

38947941 is a deficient number, since it is larger than the sum of its proper divisors (17310209).

38947941 is a wasteful number, since it uses less digits than its factorization.

38947941 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4327555 (or 4327552 counting only the distinct ones).

The product of its digits is 217728, while the sum is 45.

The square root of 38947941 is about 6240.8285507615. The cubic root of 38947941 is about 338.9701855942.

The spelling of 38947941 in words is "thirty-eight million, nine hundred forty-seven thousand, nine hundred forty-one".