2878338049 has 4 divisors (see below), whose sum is σ = 2878972864. Its totient is φ = 2877703236.

The previous prime is 2878338037. The next prime is 2878338091. The reversal of 2878338049 is 9408338782.

2878338049 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 a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 2878338049 - 2¹⁹ = 2877813761 is a prime.

It is a super-2 number, since 2×2878338049² = 16569659848642252802, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2878337987 and 2878338005.

It is not an unprimeable number, because it can be changed into a prime (2878338149) 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, 310557 + ... + 319690.

It is an arithmetic number, because the mean of its divisors is an integer number (719743216).

Almost surely, 2^2878338049 is an apocalyptic number.

It is an amenable number.

2878338049 is a deficient number, since it is larger than the sum of its proper divisors (634815).

2878338049 is an equidigital number, since it uses as much as digits as its factorization.

2878338049 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 634814.

The product of its (nonzero) digits is 2322432, while the sum is 52.

The square root of 2878338049 is about 53650.1449112675. The cubic root of 2878338049 is about 1422.4835940259.

The spelling of 2878338049 in words is "two billion, eight hundred seventy-eight million, three hundred thirty-eight thousand, forty-nine".