2888139 has 16 divisors (see below), whose sum is σ = 4039200. Its totient is φ = 1833216.

The previous prime is 2888117. The next prime is 2888141. The reversal of 2888139 is 9318882.

It is not a de Polignac number, because 2888139 - 2⁸ = 2887883 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2888097 and 2888106.

It is not an unprimeable number, because it can be changed into a prime (2888189) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7557 + ... + 7929.

It is an arithmetic number, because the mean of its divisors is an integer number (252450).

2^2888139 is an apocalyptic number.

2888139 is a gapful number since it is divisible by the number (29) formed by its first and last digit.

2888139 is a deficient number, since it is larger than the sum of its proper divisors (1151061).

2888139 is a wasteful number, since it uses less digits than its factorization.

2888139 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 494.

The product of its digits is 27648, while the sum is 39.

The square root of 2888139 is about 1699.4525589142. The cubic root of 2888139 is about 142.4096318391.

It can be divided in two parts, 28881 and 39, that added together give a triangular number (28920 = T₂₄₀).

The spelling of 2888139 in words is "two million, eight hundred eighty-eight thousand, one hundred thirty-nine".