38228569 has 2 divisors, whose sum is σ = 38228570. Its totient is φ = 38228568.

The previous prime is 38228557. The next prime is 38228587. The reversal of 38228569 is 96582283.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 31494544 + 6734025 = 5612^2 + 2595^2 .

It is a cyclic number.

It is not a de Polignac number, because 38228569 - 2⁵ = 38228537 is a prime.

It is a super-2 number, since 2×38228569² = 2922846975575522, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (38228539) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19114284 + 19114285.

It is an arithmetic number, because the mean of its divisors is an integer number (19114285).

Almost surely, 2^38228569 is an apocalyptic number.

It is an amenable number.

38228569 is a deficient number, since it is larger than the sum of its proper divisors (1).

38228569 is an equidigital number, since it uses as much as digits as its factorization.

38228569 is an evil number, because the sum of its binary digits is even.

The product of its digits is 207360, while the sum is 43.

The square root of 38228569 is about 6182.9256020108. The cubic root of 38228569 is about 336.8702667874.

The spelling of 38228569 in words is "thirty-eight million, two hundred twenty-eight thousand, five hundred sixty-nine".