38405071 has 2 divisors, whose sum is σ = 38405072. Its totient is φ = 38405070.

The previous prime is 38405041. The next prime is 38405093. The reversal of 38405071 is 17050483.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 38405071 - 2¹¹ = 38403023 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (38405011) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19202535 + 19202536.

It is an arithmetic number, because the mean of its divisors is an integer number (19202536).

Almost surely, 2^38405071 is an apocalyptic number.

38405071 is a deficient number, since it is larger than the sum of its proper divisors (1).

38405071 is an equidigital number, since it uses as much as digits as its factorization.

38405071 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3360, while the sum is 28.

The square root of 38405071 is about 6197.1825049776. The cubic root of 38405071 is about 337.3879163248.

It can be divided in two parts, 3840 and 5071, that added together give a triangular number (8911 = T₁₃₃).

The spelling of 38405071 in words is "thirty-eight million, four hundred five thousand, seventy-one".