38494009 has 2 divisors, whose sum is σ = 38494010. Its totient is φ = 38494008.

The previous prime is 38493947. The next prime is 38494021. The reversal of 38494009 is 90049483.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 25280784 + 13213225 = 5028^2 + 3635^2 .

It is a cyclic number.

It is not a de Polignac number, because 38494009 - 2²³ = 30105401 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (38494109) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19247004 + 19247005.

It is an arithmetic number, because the mean of its divisors is an integer number (19247005).

Almost surely, 2^38494009 is an apocalyptic number.

It is an amenable number.

38494009 is a deficient number, since it is larger than the sum of its proper divisors (1).

38494009 is an equidigital number, since it uses as much as digits as its factorization.

38494009 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 31104, while the sum is 37.

The square root of 38494009 is about 6204.3540356753. The cubic root of 38494009 is about 337.6481551639.

The spelling of 38494009 in words is "thirty-eight million, four hundred ninety-four thousand, nine".