2030720045 has 4 divisors (see below), whose sum is σ = 2436864060. Its totient is φ = 1624576032.

The previous prime is 2030720033. The next prime is 2030720051. The reversal of 2030720045 is 5400270302.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 837639364 + 1193080681 = 28942^2 + 34541^2 .

It is a cyclic number.

It is not a de Polignac number, because 2030720045 - 2¹⁸ = 2030457901 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2030720045.

It is a congruent number.

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, 203072000 + ... + 203072009.

It is an arithmetic number, because the mean of its divisors is an integer number (609216015).

Almost surely, 2^2030720045 is an apocalyptic number.

It is an amenable number.

2030720045 is a deficient number, since it is larger than the sum of its proper divisors (406144015).

2030720045 is an equidigital number, since it uses as much as digits as its factorization.

2030720045 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 406144014.

The product of its (nonzero) digits is 1680, while the sum is 23.

The square root of 2030720045 is about 45063.5112369198. The cubic root of 2030720045 is about 1266.3391059355.

Adding to 2030720045 its reverse (5400270302), we get a palindrome (7430990347).

The spelling of 2030720045 in words is "two billion, thirty million, seven hundred twenty thousand, forty-five".