38624149 has 2 divisors, whose sum is σ = 38624150. Its totient is φ = 38624148.

The previous prime is 38624147. The next prime is 38624161. The reversal of 38624149 is 94142683.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 27615025 + 11009124 = 5255^2 + 3318^2 .

It is a cyclic number.

It is not a de Polignac number, because 38624149 - 2¹ = 38624147 is a prime.

It is a super-3 number, since 3×38624149³ (a number of 24 digits) contains 333 as substring.

Together with 38624147, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (38624147) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19312074 + 19312075.

It is an arithmetic number, because the mean of its divisors is an integer number (19312075).

Almost surely, 2^38624149 is an apocalyptic number.

It is an amenable number.

38624149 is a deficient number, since it is larger than the sum of its proper divisors (1).

38624149 is an equidigital number, since it uses as much as digits as its factorization.

38624149 is an evil number, because the sum of its binary digits is even.

The product of its digits is 41472, while the sum is 37.

The square root of 38624149 is about 6214.8329824702. The cubic root of 38624149 is about 338.0282325308.

The spelling of 38624149 in words is "thirty-eight million, six hundred twenty-four thousand, one hundred forty-nine".