38661269 has 2 divisors, whose sum is σ = 38661270. Its totient is φ = 38661268.

The previous prime is 38661241. The next prime is 38661277. The reversal of 38661269 is 96216683.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 38254225 + 407044 = 6185^2 + 638^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-38661269 is a prime.

It is a super-2 number, since 2×38661269² = 2989387441380722, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (38661239) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19330634 + 19330635.

It is an arithmetic number, because the mean of its divisors is an integer number (19330635).

Almost surely, 2^38661269 is an apocalyptic number.

It is an amenable number.

38661269 is a deficient number, since it is larger than the sum of its proper divisors (1).

38661269 is an equidigital number, since it uses as much as digits as its factorization.

38661269 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 38661269 is about 6217.8186689546. The cubic root of 38661269 is about 338.1364859664.

The spelling of 38661269 in words is "thirty-eight million, six hundred sixty-one thousand, two hundred sixty-nine".