2278371 has 4 divisors (see below), whose sum is σ = 3037832. Its totient is φ = 1518912.

The previous prime is 2278361. The next prime is 2278379. The reversal of 2278371 is 1738722.

2278371 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 2278371 - 2⁶ = 2278307 is a prime.

It is a D-number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2278379) 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, 379726 + ... + 379731.

It is an arithmetic number, because the mean of its divisors is an integer number (759458).

2^2278371 is an apocalyptic number.

2278371 is a deficient number, since it is larger than the sum of its proper divisors (759461).

2278371 is an equidigital number, since it uses as much as digits as its factorization.

2278371 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 759460.

The product of its digits is 4704, while the sum is 30.

The square root of 2278371 is about 1509.4273748677. The cubic root of 2278371 is about 131.5855342359.

The spelling of 2278371 in words is "two million, two hundred seventy-eight thousand, three hundred seventy-one".