2318481 has 18 divisors (see below), whose sum is σ = 3682770. Its totient is φ = 1404480.

The previous prime is 2318471. The next prime is 2318483. The reversal of 2318481 is 1848132.

It can be written as a sum of positive squares in only one way, i.e., 1742400 + 576081 = 1320^2 + 759^2 .

It is not a de Polignac number, because 2318481 - 2⁶ = 2318417 is a prime.

It is a super-2 number, since 2×2318481² = 10750708294722, which contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (2318483) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 25 + ... + 2153.

2^2318481 is an apocalyptic number.

It is an amenable number.

2318481 is a deficient number, since it is larger than the sum of its proper divisors (1364289).

2318481 is a wasteful number, since it uses less digits than its factorization.

2318481 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2157 (or 2143 counting only the distinct ones).

The product of its digits is 1536, while the sum is 27.

The square root of 2318481 is about 1522.6559033478. The cubic root of 2318481 is about 132.3532206356.

The spelling of 2318481 in words is "two million, three hundred eighteen thousand, four hundred eighty-one".