38813345 has 8 divisors (see below), whose sum is σ = 47099880. Its totient is φ = 30701440.

The previous prime is 38813323. The next prime is 38813377. The reversal of 38813345 is 54331883.

It can be written as a sum of positive squares in 4 ways, for example, as 8958049 + 29855296 = 2993^2 + 5464^2 .

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

It is not a de Polignac number, because 38813345 - 2¹⁰ = 38812321 is a prime.

It is a Curzon number.

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 in 7 ways as a sum of consecutive naturals, for example, 43166 + ... + 44055.

It is an arithmetic number, because the mean of its divisors is an integer number (5887485).

Almost surely, 2^38813345 is an apocalyptic number.

It is an amenable number.

38813345 is a deficient number, since it is larger than the sum of its proper divisors (8286535).

38813345 is an equidigital number, since it uses as much as digits as its factorization.

38813345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 87315.

The product of its digits is 34560, while the sum is 35.

The square root of 38813345 is about 6230.0357141833. The cubic root of 38813345 is about 338.5792647326.

The spelling of 38813345 in words is "thirty-eight million, eight hundred thirteen thousand, three hundred forty-five".