38454491 has 2 divisors, whose sum is σ = 38454492. Its totient is φ = 38454490.

The previous prime is 38454473. The next prime is 38454509. The reversal of 38454491 is 19445483.

38454491 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a balanced prime because it is at equal distance from previous prime (38454473) and next prime (38454509).

It is an emirp because it is prime and its reverse (19445483) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 38454491 - 2¹⁸ = 38192347 is a prime.

It is not a weakly prime, because it can be changed into another prime (38454401) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19227245 + 19227246.

It is an arithmetic number, because the mean of its divisors is an integer number (19227246).

Almost surely, 2^38454491 is an apocalyptic number.

38454491 is a deficient number, since it is larger than the sum of its proper divisors (1).

38454491 is an equidigital number, since it uses as much as digits as its factorization.

38454491 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 69120, while the sum is 38.

The square root of 38454491 is about 6201.1685189164. The cubic root of 38454491 is about 337.5325722564.

The spelling of 38454491 in words is "thirty-eight million, four hundred fifty-four thousand, four hundred ninety-one".