2678730 has 32 divisors (see below), whose sum is σ = 6652800. Its totient is φ = 689472.

The previous prime is 2678729. The next prime is 2678737. The reversal of 2678730 is 378762.

It is a junction number, because it is equal to n+sod(n) for n = 2678691 and 2678700.

It is not an unprimeable number, because it can be changed into a prime (2678737) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 670 + ... + 2409.

It is an arithmetic number, because the mean of its divisors is an integer number (207900).

2^2678730 is an apocalyptic number.

2678730 is an abundant number, since it is smaller than the sum of its proper divisors (3974070).

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

2678730 is a wasteful number, since it uses less digits than its factorization.

2678730 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3118.

The product of its (nonzero) digits is 14112, while the sum is 33.

The square root of 2678730 is about 1636.6826204246. The cubic root of 2678730 is about 138.8810465498.

Subtracting from 2678730 its reverse (378762), we obtain a cube (2299968 = 132³).

The spelling of 2678730 in words is "two million, six hundred seventy-eight thousand, seven hundred thirty".