38750381 has 2 divisors, whose sum is σ = 38750382. Its totient is φ = 38750380.

The previous prime is 38750363. The next prime is 38750389. The reversal of 38750381 is 18305783.

38750381 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 38316100 + 434281 = 6190^2 + 659^2 .

It is an emirp because it is prime and its reverse (18305783) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 38750381 - 2⁶ = 38750317 is a prime.

It is a super-2 number, since 2×38750381² = 3003184055290322, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (38750389) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19375190 + 19375191.

It is an arithmetic number, because the mean of its divisors is an integer number (19375191).

Almost surely, 2^38750381 is an apocalyptic number.

It is an amenable number.

38750381 is a deficient number, since it is larger than the sum of its proper divisors (1).

38750381 is an equidigital number, since it uses as much as digits as its factorization.

38750381 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 20160, while the sum is 35.

The square root of 38750381 is about 6224.9804015756. The cubic root of 38750381 is about 338.3960816639.

The spelling of 38750381 in words is "thirty-eight million, seven hundred fifty thousand, three hundred eighty-one".