38427845 has 8 divisors (see below), whose sum is σ = 46423800. Its totient is φ = 30535360.

The previous prime is 38427833. The next prime is 38427847. The reversal of 38427845 is 54872483.

It can be written as a sum of positive squares in 4 ways, for example, as 2439844 + 35988001 = 1562^2 + 5999^2 .

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

It is a de Polignac number, because none of the positive numbers 2^k-38427845 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38427847) 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, 25046 + ... + 26535.

It is an arithmetic number, because the mean of its divisors is an integer number (5802975).

Almost surely, 2^38427845 is an apocalyptic number.

It is an amenable number.

38427845 is a deficient number, since it is larger than the sum of its proper divisors (7995955).

38427845 is a wasteful number, since it uses less digits than its factorization.

38427845 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51735.

The product of its digits is 215040, while the sum is 41.

The square root of 38427845 is about 6199.0196805624. The cubic root of 38427845 is about 337.4545928853.

The spelling of 38427845 in words is "thirty-eight million, four hundred twenty-seven thousand, eight hundred forty-five".