2678994 has 40 divisors (see below), whose sum is σ = 6272640. Its totient is φ = 852984.

The previous prime is 2678993. The next prime is 2679031. The reversal of 2678994 is 4998762.

It is a happy number.

Its product of digits (217728) is a multiple of the sum of its prime factors (756).

It is not an unprimeable number, because it can be changed into a prime (2678993) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 3367 + ... + 4085.

It is an arithmetic number, because the mean of its divisors is an integer number (156816).

2^2678994 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2678994, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3136320).

2678994 is an abundant number, since it is smaller than the sum of its proper divisors (3593646).

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

2678994 is a wasteful number, since it uses less digits than its factorization.

2678994 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 756 (or 747 counting only the distinct ones).

The product of its digits is 217728, while the sum is 45.

The square root of 2678994 is about 1636.7632693826. The cubic root of 2678994 is about 138.8856088351.

It can be divided in two parts, 267 and 8994, that added together give a cube (9261 = 21³).

The spelling of 2678994 in words is "two million, six hundred seventy-eight thousand, nine hundred ninety-four".