2020645794 has 16 divisors (see below), whose sum is σ = 4081305600. Its totient is φ = 666879600.

The previous prime is 2020645793. The next prime is 2020645799. The reversal of 2020645794 is 4975460202.

It is not an unprimeable number, because it can be changed into a prime (2020645793) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1666594 + ... + 1667805.

It is an arithmetic number, because the mean of its divisors is an integer number (255081600).

Almost surely, 2^2020645794 is an apocalyptic number.

2020645794 is an abundant number, since it is smaller than the sum of its proper divisors (2060659806).

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

2020645794 is a wasteful number, since it uses less digits than its factorization.

2020645794 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3334505.

The product of its (nonzero) digits is 120960, while the sum is 39.

The square root of 2020645794 is about 44951.5938983258. The cubic root of 2020645794 is about 1264.2415621649.

The spelling of 2020645794 in words is "two billion, twenty million, six hundred forty-five thousand, seven hundred ninety-four".