2271278 has 8 divisors (see below), whose sum is σ = 3433320. Its totient is φ = 1126840.

The previous prime is 2271271. The next prime is 2271281. The reversal of 2271278 is 8721722.

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

It is a self number, because there is not a number n which added to its sum of digits gives 2271278.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2271271) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4073 + ... + 4596.

It is an arithmetic number, because the mean of its divisors is an integer number (429165).

2^2271278 is an apocalyptic number.

2271278 is a deficient number, since it is larger than the sum of its proper divisors (1162042).

2271278 is a wasteful number, since it uses less digits than its factorization.

2271278 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8802.

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

The square root of 2271278 is about 1507.0759768505. The cubic root of 2271278 is about 131.4488420665.

The spelling of 2271278 in words is "two million, two hundred seventy-one thousand, two hundred seventy-eight".