2858281 has 4 divisors (see below), whose sum is σ = 2861712. Its totient is φ = 2854852.

The previous prime is 2858263. The next prime is 2858309. The reversal of 2858281 is 1828582.

It is a happy number.

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, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 2858281 - 2⁵ = 2858249 is a prime.

It is a super-2 number, since 2×2858281² = 16339540549922, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2858221) 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, 426 + ... + 2428.

It is an arithmetic number, because the mean of its divisors is an integer number (715428).

2^2858281 is an apocalyptic number.

It is an amenable number.

2858281 is a deficient number, since it is larger than the sum of its proper divisors (3431).

2858281 is a wasteful number, since it uses less digits than its factorization.

2858281 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3430.

The product of its digits is 10240, while the sum is 34.

The square root of 2858281 is about 1690.6451431332. The cubic root of 2858281 is about 141.9171804305.

The spelling of 2858281 in words is "two million, eight hundred fifty-eight thousand, two hundred eighty-one".