2678946 has 16 divisors (see below), whose sum is σ = 5414304. Its totient is φ = 883584.

The previous prime is 2678941. The next prime is 2678983. The reversal of 2678946 is 6498762.

It is an Ulam number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 2678898 and 2678907.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2678941) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1720 + ... + 2883.

It is an arithmetic number, because the mean of its divisors is an integer number (338394).

2^2678946 is an apocalyptic number.

2678946 is an abundant number, since it is smaller than the sum of its proper divisors (2735358).

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

2678946 is a wasteful number, since it uses less digits than its factorization.

2678946 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4705.

The product of its digits is 145152, while the sum is 42.

The square root of 2678946 is about 1636.7486062313. The cubic root of 2678946 is about 138.8847793510.

The spelling of 2678946 in words is "two million, six hundred seventy-eight thousand, nine hundred forty-six".