2840042889 has 12 divisors (see below), whose sum is σ = 4103899956. Its totient is φ = 1892616192.

The previous prime is 2840042869. The next prime is 2840042903. The reversal of 2840042889 is 9882400482.

It is a happy number.

2840042889 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 1718931600 + 1121111289 = 41460^2 + 33483^2 .

It is not a de Polignac number, because 2840042889 - 2¹³ = 2840034697 is a prime.

It is a super-2 number, since 2×2840042889² = 16131687222718932642, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (2840042809) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 37512 + ... + 84185.

It is an arithmetic number, because the mean of its divisors is an integer number (341991663).

Almost surely, 2^2840042889 is an apocalyptic number.

It is an amenable number.

2840042889 is a deficient number, since it is larger than the sum of its proper divisors (1263857067).

2840042889 is a wasteful number, since it uses less digits than its factorization.

2840042889 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 124296 (or 124293 counting only the distinct ones).

The product of its (nonzero) digits is 294912, while the sum is 45.

The square root of 2840042889 is about 53292.0527752497. The cubic root of 2840042889 is about 1416.1468789156.

It can be divided in two parts, 28400 and 42889, that added together give a square (71289 = 267²).

The spelling of 2840042889 in words is "two billion, eight hundred forty million, forty-two thousand, eight hundred eighty-nine".