38356081 has 2 divisors, whose sum is σ = 38356082. Its totient is φ = 38356080.

The previous prime is 38356061. The next prime is 38356103. The reversal of 38356081 is 18065383.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 37405456 + 950625 = 6116^2 + 975^2 .

It is a cyclic number.

It is not a de Polignac number, because 38356081 - 2⁷ = 38355953 is a prime.

It is a super-2 number, since 2×38356081² = 2942377899357122, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (38356061) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19178040 + 19178041.

It is an arithmetic number, because the mean of its divisors is an integer number (19178041).

Almost surely, 2^38356081 is an apocalyptic number.

It is an amenable number.

38356081 is a deficient number, since it is larger than the sum of its proper divisors (1).

38356081 is an equidigital number, since it uses as much as digits as its factorization.

38356081 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 17280, while the sum is 34.

The square root of 38356081 is about 6193.2286410240. The cubic root of 38356081 is about 337.2443965012.

The spelling of 38356081 in words is "thirty-eight million, three hundred fifty-six thousand, eighty-one".