38864919 has 8 divisors (see below), whose sum is σ = 52476160. Its totient is φ = 25581816.

The previous prime is 38864909. The next prime is 38864927. The reversal of 38864919 is 91946883.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 38864919 - 2¹⁷ = 38733847 is a prime.

It is a super-2 number, since 2×38864919² = 3020963857753122, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38864909) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 81757 + ... + 82230.

It is an arithmetic number, because the mean of its divisors is an integer number (6559520).

Almost surely, 2^38864919 is an apocalyptic number.

38864919 is a deficient number, since it is larger than the sum of its proper divisors (13611241).

38864919 is a wasteful number, since it uses less digits than its factorization.

38864919 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 164069.

The product of its digits is 373248, while the sum is 48.

The square root of 38864919 is about 6234.1734817055. The cubic root of 38864919 is about 338.7291629908.

The spelling of 38864919 in words is "thirty-eight million, eight hundred sixty-four thousand, nine hundred nineteen".