38744245 has 8 divisors (see below), whose sum is σ = 46533816. Its totient is φ = 30968256.

The previous prime is 38744231. The next prime is 38744257. The reversal of 38744245 is 54244783.

38744245 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 27468081 + 11276164 = 5241^2 + 3358^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 38744245 - 2⁷ = 38744117 is a prime.

It is a super-2 number, since 2×38744245² = 3002233041240050, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

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 in 7 ways as a sum of consecutive naturals, for example, 4599 + ... + 9931.

It is an arithmetic number, because the mean of its divisors is an integer number (5816727).

Almost surely, 2^38744245 is an apocalyptic number.

It is an amenable number.

38744245 is a deficient number, since it is larger than the sum of its proper divisors (7789571).

38744245 is a wasteful number, since it uses less digits than its factorization.

38744245 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6791.

The product of its digits is 107520, while the sum is 37.

The square root of 38744245 is about 6224.4875291063. The cubic root of 38744245 is about 338.3782194055.

The spelling of 38744245 in words is "thirty-eight million, seven hundred forty-four thousand, two hundred forty-five".