38518457 has 2 divisors, whose sum is σ = 38518458. Its totient is φ = 38518456.

The previous prime is 38518451. The next prime is 38518463. The reversal of 38518457 is 75481583.

It is a balanced prime because it is at equal distance from previous prime (38518451) and next prime (38518463).

It can be written as a sum of positive squares in only one way, i.e., 37589161 + 929296 = 6131^2 + 964^2 .

It is a cyclic number.

It is not a de Polignac number, because 38518457 - 2¹⁸ = 38256313 is a prime.

It is not a weakly prime, because it can be changed into another prime (38518451) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19259228 + 19259229.

It is an arithmetic number, because the mean of its divisors is an integer number (19259229).

Almost surely, 2^38518457 is an apocalyptic number.

It is an amenable number.

38518457 is a deficient number, since it is larger than the sum of its proper divisors (1).

38518457 is an equidigital number, since it uses as much as digits as its factorization.

38518457 is an evil number, because the sum of its binary digits is even.

The product of its digits is 134400, while the sum is 41.

The square root of 38518457 is about 6206.3239522281. The cubic root of 38518457 is about 337.7196214808.

The spelling of 38518457 in words is "thirty-eight million, five hundred eighteen thousand, four hundred fifty-seven".