2881481 has 4 divisors (see below), whose sum is σ = 2974464. Its totient is φ = 2788500.

The previous prime is 2881471. The next prime is 2881499. The reversal of 2881481 is 1841882.

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 2881481 - 2¹⁴ = 2865097 is a prime.

It is a super-2 number, since 2×2881481² = 16605865506722, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2881441) 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, 46445 + ... + 46506.

It is an arithmetic number, because the mean of its divisors is an integer number (743616).

2^2881481 is an apocalyptic number.

It is an amenable number.

2881481 is a deficient number, since it is larger than the sum of its proper divisors (92983).

2881481 is an equidigital number, since it uses as much as digits as its factorization.

2881481 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 92982.

The product of its digits is 4096, while the sum is 32.

The square root of 2881481 is about 1697.4925625758. The cubic root of 2881481 is about 142.3001157735.

The spelling of 2881481 in words is "two million, eight hundred eighty-one thousand, four hundred eighty-one".