2679138 has 48 divisors (see below), whose sum is σ = 7240896. Its totient is φ = 695520.

The previous prime is 2679119. The next prime is 2679139. The reversal of 2679138 is 8319762.

It is not an unprimeable number, because it can be changed into a prime (2679139) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 420 + ... + 2352.

It is an arithmetic number, because the mean of its divisors is an integer number (150852).

2^2679138 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2679138, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3620448).

2679138 is an abundant number, since it is smaller than the sum of its proper divisors (4561758).

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

2679138 is a wasteful number, since it uses less digits than its factorization.

2679138 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1959 (or 1956 counting only the distinct ones).

The product of its digits is 18144, while the sum is 36.

The square root of 2679138 is about 1636.8072580484. The cubic root of 2679138 is about 138.8880972281. Note that the first 3 decimals are identical.

The spelling of 2679138 in words is "two million, six hundred seventy-nine thousand, one hundred thirty-eight".