38077381 has 2 divisors, whose sum is σ = 38077382. Its totient is φ = 38077380.

The previous prime is 38077363. The next prime is 38077423. The reversal of 38077381 is 18377083.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 34117281 + 3960100 = 5841^2 + 1990^2 .

It is a cyclic number.

It is not a de Polignac number, because 38077381 - 2¹⁵ = 38044613 is a prime.

It is a super-2 number, since 2×38077381² = 2899773887638322, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 38077381.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (38077301) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19038690 + 19038691.

It is an arithmetic number, because the mean of its divisors is an integer number (19038691).

Almost surely, 2^38077381 is an apocalyptic number.

It is an amenable number.

38077381 is a deficient number, since it is larger than the sum of its proper divisors (1).

38077381 is an equidigital number, since it uses as much as digits as its factorization.

38077381 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 28224, while the sum is 37.

The square root of 38077381 is about 6170.6872388738. The cubic root of 38077381 is about 336.4255903567.

The spelling of 38077381 in words is "thirty-eight million, seventy-seven thousand, three hundred eighty-one".