2918481 has 4 divisors (see below), whose sum is σ = 3891312. Its totient is φ = 1945652.

The previous prime is 2918479. The next prime is 2918491. The reversal of 2918481 is 1848192.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 2918481 - 2¹ = 2918479 is a prime.

It is a super-2 number, since 2×2918481² = 17035062694722, which contains 22 as substring.

It is a D-number.

2918481 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (2918411) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 486411 + ... + 486416.

It is an arithmetic number, because the mean of its divisors is an integer number (972828).

2^2918481 is an apocalyptic number.

It is an amenable number.

2918481 is a deficient number, since it is larger than the sum of its proper divisors (972831).

2918481 is an equidigital number, since it uses as much as digits as its factorization.

2918481 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 972830.

The product of its digits is 4608, while the sum is 33.

The square root of 2918481 is about 1708.3562274889. The cubic root of 2918481 is about 142.9066011133.

The spelling of 2918481 in words is "two million, nine hundred eighteen thousand, four hundred eighty-one".