38758257 has 12 divisors (see below), whose sum is σ = 58058000. Its totient is φ = 25838676.

The previous prime is 38758253. The next prime is 38758301. The reversal of 38758257 is 75285783.

It is not a de Polignac number, because 38758257 - 2² = 38758253 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (38758253) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 79507 + ... + 79992.

Almost surely, 2^38758257 is an apocalyptic number.

It is an amenable number.

38758257 is a deficient number, since it is larger than the sum of its proper divisors (19299743).

38758257 is an equidigital number, since it uses as much as digits as its factorization.

38758257 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 159514 (or 159502 counting only the distinct ones).

The product of its digits is 470400, while the sum is 45.

The square root of 38758257 is about 6225.6129818677. The cubic root of 38758257 is about 338.4190064019.

The spelling of 38758257 in words is "thirty-eight million, seven hundred fifty-eight thousand, two hundred fifty-seven".