38369381 has 2 divisors, whose sum is σ = 38369382. Its totient is φ = 38369380.

The previous prime is 38369347. The next prime is 38369447. The reversal of 38369381 is 18396383.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 24344356 + 14025025 = 4934^2 + 3745^2 .

It is an emirp because it is prime and its reverse (18396383) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 38369381 - 2¹⁴ = 38352997 is a prime.

It is a super-2 number, since 2×38369381² = 2944418796646322, 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 (38369321) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19184690 + 19184691.

It is an arithmetic number, because the mean of its divisors is an integer number (19184691).

Almost surely, 2^38369381 is an apocalyptic number.

It is an amenable number.

38369381 is a deficient number, since it is larger than the sum of its proper divisors (1).

38369381 is an equidigital number, since it uses as much as digits as its factorization.

38369381 is an evil number, because the sum of its binary digits is even.

The product of its digits is 93312, while the sum is 41.

The square root of 38369381 is about 6194.3023013088. The cubic root of 38369381 is about 337.2833719128.

The spelling of 38369381 in words is "thirty-eight million, three hundred sixty-nine thousand, three hundred eighty-one".