38278093 has 4 divisors (see below), whose sum is σ = 43746400. Its totient is φ = 32809788.

The previous prime is 38278081. The next prime is 38278111. The reversal of 38278093 is 39087283.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 38278093 - 2¹³ = 38269901 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 (38278993) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 2734143 + ... + 2734156.

It is an arithmetic number, because the mean of its divisors is an integer number (10936600).

Almost surely, 2^38278093 is an apocalyptic number.

It is an amenable number.

38278093 is a deficient number, since it is larger than the sum of its proper divisors (5468307).

38278093 is an equidigital number, since it uses as much as digits as its factorization.

38278093 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5468306.

The product of its (nonzero) digits is 72576, while the sum is 40.

The square root of 38278093 is about 6186.9292059955. The cubic root of 38278093 is about 337.0156725622.

The spelling of 38278093 in words is "thirty-eight million, two hundred seventy-eight thousand, ninety-three".