2272258 has 4 divisors (see below), whose sum is σ = 3408390. Its totient is φ = 1136128.

The previous prime is 2272253. The next prime is 2272273. The reversal of 2272258 is 8522722.

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

It can be written as a sum of positive squares in only one way, i.e., 1456849 + 815409 = 1207^2 + 903^2 .

It is not an unprimeable number, because it can be changed into a prime (2272253) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 568063 + ... + 568066.

2^2272258 is an apocalyptic number.

2272258 is a deficient number, since it is larger than the sum of its proper divisors (1136132).

2272258 is a wasteful number, since it uses less digits than its factorization.

2272258 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1136131.

The product of its digits is 4480, while the sum is 28.

The square root of 2272258 is about 1507.4010746978. The cubic root of 2272258 is about 131.4677449840.

It can be divided in two parts, 22722 and 58, that multiplied together give a triangular number (1317876 = T₁₆₂₃).

The spelling of 2272258 in words is "two million, two hundred seventy-two thousand, two hundred fifty-eight".