2720930 has 8 divisors (see below), whose sum is σ = 4897692. Its totient is φ = 1088368.

The previous prime is 2720917. The next prime is 2720953. The reversal of 2720930 is 390272.

It can be written as a sum of positive squares in 2 ways, for example, as 2569609 + 151321 = 1603^2 + 389^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 2720896 and 2720905.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 136037 + ... + 136056.

2^2720930 is an apocalyptic number.

2720930 is a deficient number, since it is larger than the sum of its proper divisors (2176762).

2720930 is a wasteful number, since it uses less digits than its factorization.

2720930 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 272100.

The product of its (nonzero) digits is 756, while the sum is 23.

The square root of 2720930 is about 1649.5241738150. The cubic root of 2720930 is about 139.6065483528.

The spelling of 2720930 in words is "two million, seven hundred twenty thousand, nine hundred thirty".