38504413 has 2 divisors, whose sum is σ = 38504414. Its totient is φ = 38504412.

The previous prime is 38504381. The next prime is 38504419. The reversal of 38504413 is 31440583.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 21874329 + 16630084 = 4677^2 + 4078^2 .

It is an emirp because it is prime and its reverse (31440583) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 38504413 - 2⁵ = 38504381 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (38504419) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19252206 + 19252207.

It is an arithmetic number, because the mean of its divisors is an integer number (19252207).

Almost surely, 2^38504413 is an apocalyptic number.

It is an amenable number.

38504413 is a deficient number, since it is larger than the sum of its proper divisors (1).

38504413 is an equidigital number, since it uses as much as digits as its factorization.

38504413 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5760, while the sum is 28.

The square root of 38504413 is about 6205.1924224797. The cubic root of 38504413 is about 337.6785718016.

Adding to 38504413 its reverse (31440583), we get a palindrome (69944996).

The spelling of 38504413 in words is "thirty-eight million, five hundred four thousand, four hundred thirteen".