2271042 has 24 divisors (see below), whose sum is σ = 4949100. Its totient is φ = 752640.

The previous prime is 2271041. The next prime is 2271053. The reversal of 2271042 is 2401722.

It can be written as a sum of positive squares in 2 ways, for example, as 2223081 + 47961 = 1491^2 + 219^2 .

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an Ulam number.

It is not an unprimeable number, because it can be changed into a prime (2271041) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4834 + ... + 5282.

2^2271042 is an apocalyptic number.

2271042 is an abundant number, since it is smaller than the sum of its proper divisors (2678058).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2271042 is a wasteful number, since it uses less digits than its factorization.

2271042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 738 (or 735 counting only the distinct ones).

The product of its (nonzero) digits is 224, while the sum is 18.

The square root of 2271042 is about 1506.9976775032. The cubic root of 2271042 is about 131.4442891230. Note that the first 3 decimals are identical.

Adding to 2271042 its reverse (2401722), we get a palindrome (4672764).

The spelling of 2271042 in words is "two million, two hundred seventy-one thousand, forty-two".