2271478 has 16 divisors (see below), whose sum is σ = 3741696. Its totient is φ = 1025640.

The previous prime is 2271473. The next prime is 2271481. The reversal of 2271478 is 8741722.

2271478 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×2271478² = 10319224608968, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2271473) 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 7 ways as a sum of consecutive naturals, for example, 4675 + ... + 5137.

It is an arithmetic number, because the mean of its divisors is an integer number (233856).

2^2271478 is an apocalyptic number.

2271478 is a deficient number, since it is larger than the sum of its proper divisors (1470218).

2271478 is a wasteful number, since it uses less digits than its factorization.

2271478 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 699.

The product of its digits is 6272, while the sum is 31.

The square root of 2271478 is about 1507.1423290453. The cubic root of 2271478 is about 131.4527002463.

It can be divided in two parts, 22 and 71478, that multiplied together give a square (1572516 = 1254²).

The spelling of 2271478 in words is "two million, two hundred seventy-one thousand, four hundred seventy-eight".