2858049409 has 4 divisors (see below), whose sum is σ = 2904902740. Its totient is φ = 2811196080.

The previous prime is 2858049379. The next prime is 2858049413. The reversal of 2858049409 is 9049408582.

2858049409 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 9049408582 = 2 ⋅4524704291.

It can be written as a sum of positive squares in 2 ways, for example, as 845181184 + 2012868225 = 29072^2 + 44865^2 .

It is a cyclic number.

It is not a de Polignac number, because 2858049409 - 2⁵ = 2858049377 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2858049479) 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, 23426574 + ... + 23426695.

It is an arithmetic number, because the mean of its divisors is an integer number (726225685).

Almost surely, 2^2858049409 is an apocalyptic number.

It is an amenable number.

2858049409 is a deficient number, since it is larger than the sum of its proper divisors (46853331).

2858049409 is an equidigital number, since it uses as much as digits as its factorization.

2858049409 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46853330.

The product of its (nonzero) digits is 829440, while the sum is 49.

The square root of 2858049409 is about 53460.7277260607. The cubic root of 2858049409 is about 1419.1334740058.

The spelling of 2858049409 in words is "two billion, eight hundred fifty-eight million, forty-nine thousand, four hundred nine".