2878898394 has 16 divisors (see below), whose sum is σ = 5898231360. Its totient is φ = 936227040.

The previous prime is 2878898387. The next prime is 2878898413. The reversal of 2878898394 is 4938988782.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5851174 + ... + 5851665.

It is an arithmetic number, because the mean of its divisors is an integer number (368639460).

Almost surely, 2^2878898394 is an apocalyptic number.

2878898394 is an abundant number, since it is smaller than the sum of its proper divisors (3019332966).

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

2878898394 is a wasteful number, since it uses less digits than its factorization.

2878898394 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11702885.

The product of its digits is 55738368, while the sum is 66.

The square root of 2878898394 is about 53655.3668704259. The cubic root of 2878898394 is about 1422.5758961156.

The spelling of 2878898394 in words is "two billion, eight hundred seventy-eight million, eight hundred ninety-eight thousand, three hundred ninety-four".