38454866 has 4 divisors (see below), whose sum is σ = 57682302. Its totient is φ = 19227432.

The previous prime is 38454859. The next prime is 38454893. The reversal of 38454866 is 66845483.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 66845483 = 5443 ⋅12281.

It can be written as a sum of positive squares in only one way, i.e., 36954241 + 1500625 = 6079^2 + 1225^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9613715 + ... + 9613718.

Almost surely, 2^38454866 is an apocalyptic number.

38454866 is a deficient number, since it is larger than the sum of its proper divisors (19227436).

38454866 is a wasteful number, since it uses less digits than its factorization.

38454866 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19227435.

The product of its digits is 552960, while the sum is 44.

The square root of 38454866 is about 6201.1987550795. The cubic root of 38454866 is about 337.5336694348.

The spelling of 38454866 in words is "thirty-eight million, four hundred fifty-four thousand, eight hundred sixty-six".