2236481 has 8 divisors (see below), whose sum is σ = 2436840. Its totient is φ = 2040192.

The previous prime is 2236477. The next prime is 2236483. The reversal of 2236481 is 1846322.

It can be written as a sum of positive squares in 4 ways, for example, as 34225 + 2202256 = 185^2 + 1484^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 2236481 - 2² = 2236477 is a prime.

It is a super-2 number, since 2×2236481² = 10003694526722, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2236481.

It is not an unprimeable number, because it can be changed into a prime (2236483) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (5) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 191 + ... + 2123.

It is an arithmetic number, because the mean of its divisors is an integer number (304605).

2^2236481 is an apocalyptic number.

It is an amenable number.

2236481 is a deficient number, since it is larger than the sum of its proper divisors (200359).

2236481 is a wasteful number, since it uses less digits than its factorization.

2236481 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2035.

The product of its digits is 2304, while the sum is 26.

The square root of 2236481 is about 1495.4868772410. The cubic root of 2236481 is about 130.7740993396.

The spelling of 2236481 in words is "two million, two hundred thirty-six thousand, four hundred eighty-one".