2020645574 has 4 divisors (see below), whose sum is σ = 3030968364. Its totient is φ = 1010322786.

The previous prime is 2020645567. The next prime is 2020645579. The reversal of 2020645574 is 4755460202.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2020645579) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 505161392 + ... + 505161395.

It is an arithmetic number, because the mean of its divisors is an integer number (757742091).

Almost surely, 2^2020645574 is an apocalyptic number.

2020645574 is a deficient number, since it is larger than the sum of its proper divisors (1010322790).

2020645574 is a wasteful number, since it uses less digits than its factorization.

2020645574 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1010322789.

The product of its (nonzero) digits is 67200, while the sum is 35.

The square root of 2020645574 is about 44951.5914512490. The cubic root of 2020645574 is about 1264.2415162831.

The spelling of 2020645574 in words is "two billion, twenty million, six hundred forty-five thousand, five hundred seventy-four".