38660239 has 2 divisors, whose sum is σ = 38660240. Its totient is φ = 38660238.

The previous prime is 38660221. The next prime is 38660243. The reversal of 38660239 is 93206683.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 38660239 - 2⁹ = 38659727 is a prime.

It is a super-2 number, since 2×38660239² = 2989228159074242, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 38660198 and 38660207.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (38660249) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19330119 + 19330120.

It is an arithmetic number, because the mean of its divisors is an integer number (19330120).

Almost surely, 2^38660239 is an apocalyptic number.

38660239 is a deficient number, since it is larger than the sum of its proper divisors (1).

38660239 is an equidigital number, since it uses as much as digits as its factorization.

38660239 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 46656, while the sum is 37.

The square root of 38660239 is about 6217.7358419283. The cubic root of 38660239 is about 338.1334831018.

The spelling of 38660239 in words is "thirty-eight million, six hundred sixty thousand, two hundred thirty-nine".