38278085 has 8 divisors (see below), whose sum is σ = 46168056. Its totient is φ = 30466240.

The previous prime is 38278081. The next prime is 38278111. The reversal of 38278085 is 58087283.

It can be written as a sum of positive squares in 4 ways, for example, as 21883684 + 16394401 = 4678^2 + 4049^2 .

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

It is not a de Polignac number, because 38278085 - 2² = 38278081 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38278081) 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, 18446 + ... + 20415.

It is an arithmetic number, because the mean of its divisors is an integer number (5771007).

Almost surely, 2^38278085 is an apocalyptic number.

It is an amenable number.

38278085 is a deficient number, since it is larger than the sum of its proper divisors (7889971).

38278085 is a wasteful number, since it uses less digits than its factorization.

38278085 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39063.

The product of its (nonzero) digits is 107520, while the sum is 41.

The square root of 38278085 is about 6186.9285594712. The cubic root of 38278085 is about 337.0156490838.

The spelling of 38278085 in words is "thirty-eight million, two hundred seventy-eight thousand, eighty-five".