2278271 has 6 divisors (see below), whose sum is σ = 2404872. Its totient is φ = 2158020.

The previous prime is 2278261. The next prime is 2278277. The reversal of 2278271 is 1728722.

It is not a de Polignac number, because 2278271 - 2⁶ = 2278207 is a prime.

It is a d-powerful number, because it can be written as 2⁷ + 2¹⁷ + 7³ + 8⁵ + 2²¹ + 7⁵ + 1 .

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2278277) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2795 + ... + 3516.

It is an arithmetic number, because the mean of its divisors is an integer number (400812).

2^2278271 is an apocalyptic number.

2278271 is a deficient number, since it is larger than the sum of its proper divisors (126601).

2278271 is an equidigital number, since it uses as much as digits as its factorization.

2278271 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6349 (or 6330 counting only the distinct ones).

The product of its digits is 3136, while the sum is 29.

The square root of 2278271 is about 1509.3942493597. The cubic root of 2278271 is about 131.5836090671.

The spelling of 2278271 in words is "two million, two hundred seventy-eight thousand, two hundred seventy-one".