2070305 has 4 divisors (see below), whose sum is σ = 2484372. Its totient is φ = 1656240.

The previous prime is 2070301. The next prime is 2070307. The reversal of 2070305 is 5030702.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 5030702 = 2 ⋅2515351.

It can be written as a sum of positive squares in 2 ways, for example, as 1274641 + 795664 = 1129^2 + 892^2 .

It is not a de Polignac number, because 2070305 - 2² = 2070301 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (2070301) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 207026 + ... + 207035.

It is an arithmetic number, because the mean of its divisors is an integer number (621093).

2^2070305 is an apocalyptic number.

It is an amenable number.

2070305 is a deficient number, since it is larger than the sum of its proper divisors (414067).

2070305 is an equidigital number, since it uses as much as digits as its factorization.

2070305 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 414066.

The product of its (nonzero) digits is 210, while the sum is 17.

The square root of 2070305 is about 1438.8554479169. The cubic root of 2070305 is about 127.4514488988.

The spelling of 2070305 in words is "two million, seventy thousand, three hundred five".