38801309 has 2 divisors, whose sum is σ = 38801310. Its totient is φ = 38801308.

The previous prime is 38801297. The next prime is 38801339. The reversal of 38801309 is 90310883.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 33292900 + 5508409 = 5770^2 + 2347^2 .

It is a cyclic number.

It is not a de Polignac number, because 38801309 - 2⁸ = 38801053 is a prime.

It is a super-2 number, since 2×38801309² = 3011083160226962, 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 (38801339) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19400654 + 19400655.

It is an arithmetic number, because the mean of its divisors is an integer number (19400655).

Almost surely, 2^38801309 is an apocalyptic number.

It is an amenable number.

38801309 is a deficient number, since it is larger than the sum of its proper divisors (1).

38801309 is an equidigital number, since it uses as much as digits as its factorization.

38801309 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5184, while the sum is 32.

The square root of 38801309 is about 6229.0696737153. The cubic root of 38801309 is about 338.5442633575.

The spelling of 38801309 in words is "thirty-eight million, eight hundred one thousand, three hundred nine".