2070943409 has 4 divisors (see below), whose sum is σ = 2079987060. Its totient is φ = 2061899760.

The previous prime is 2070943397. The next prime is 2070943411. The reversal of 2070943409 is 9043490702.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 9043490702 = 2 ⋅4521745351.

It can be written as a sum of positive squares in 2 ways, for example, as 1235733409 + 835210000 = 35153^2 + 28900^2 .

It is a cyclic number.

It is not a de Polignac number, because 2070943409 - 2⁴ = 2070943393 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2070943439) 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, 4521482 + ... + 4521939.

It is an arithmetic number, because the mean of its divisors is an integer number (519996765).

Almost surely, 2^2070943409 is an apocalyptic number.

It is an amenable number.

2070943409 is a deficient number, since it is larger than the sum of its proper divisors (9043651).

2070943409 is an equidigital number, since it uses as much as digits as its factorization.

2070943409 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9043650.

The product of its (nonzero) digits is 54432, while the sum is 38.

The square root of 2070943409 is about 45507.6192411776. The cubic root of 2070943409 is about 1274.6454806209.

The spelling of 2070943409 in words is "two billion, seventy million, nine hundred forty-three thousand, four hundred nine".