2878243428 has 12 divisors (see below), whose sum is σ = 6715901360. Its totient is φ = 959414472.

The previous prime is 2878243421. The next prime is 2878243451. The reversal of 2878243428 is 8243428782.

It is a tau number, because it is divible by the number of its divisors (12).

It is not an unprimeable number, because it can be changed into a prime (2878243421) 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, 119926798 + ... + 119926821.

Almost surely, 2^2878243428 is an apocalyptic number.

It is an amenable number.

2878243428 is an abundant number, since it is smaller than the sum of its proper divisors (3837657932).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2878243428 is a wasteful number, since it uses less digits than its factorization.

2878243428 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 239853626 (or 239853624 counting only the distinct ones).

The product of its digits is 1376256, while the sum is 48.

The square root of 2878243428 is about 53649.2630704281. The cubic root of 2878243428 is about 1422.4680065245.

The spelling of 2878243428 in words is "two billion, eight hundred seventy-eight million, two hundred forty-three thousand, four hundred twenty-eight".