2820648445 has 8 divisors (see below), whose sum is σ = 3385133280. Its totient is φ = 2256282000.

The previous prime is 2820648443. The next prime is 2820648451. The reversal of 2820648445 is 5448460282.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 2820648445 - 2¹ = 2820648443 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2820648443) 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, 36070 + ... + 83320.

It is an arithmetic number, because the mean of its divisors is an integer number (423141660).

Almost surely, 2^2820648445 is an apocalyptic number.

It is an amenable number.

2820648445 is a deficient number, since it is larger than the sum of its proper divisors (564484835).

2820648445 is a wasteful number, since it uses less digits than its factorization.

2820648445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 59195.

The product of its (nonzero) digits is 491520, while the sum is 43.

The square root of 2820648445 is about 53109.7773013595. Note that the first 3 decimals coincide. The cubic root of 2820648445 is about 1412.9159254429.

The spelling of 2820648445 in words is "two billion, eight hundred twenty million, six hundred forty-eight thousand, four hundred forty-five".