2681838 has 12 divisors (see below), whose sum is σ = 5810688. Its totient is φ = 893940.

The previous prime is 2681827. The next prime is 2681843. The reversal of 2681838 is 8381862.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 74478 + ... + 74513.

It is an arithmetic number, because the mean of its divisors is an integer number (484224).

2^2681838 is an apocalyptic number.

2681838 is an abundant number, since it is smaller than the sum of its proper divisors (3128850).

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

2681838 is a wasteful number, since it uses less digits than its factorization.

2681838 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 148999 (or 148996 counting only the distinct ones).

The product of its digits is 18432, while the sum is 36.

The square root of 2681838 is about 1637.6318267547. The cubic root of 2681838 is about 138.9347380954.

The spelling of 2681838 in words is "two million, six hundred eighty-one thousand, eight hundred thirty-eight".