2845513220 has 48 divisors (see below), whose sum is σ = 6528465216. Its totient is φ = 1033200000.

The previous prime is 2845513141. The next prime is 2845513259. The reversal of 2845513220 is 223155482.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 144995 + ... + 163445.

It is an arithmetic number, because the mean of its divisors is an integer number (136009692).

Almost surely, 2^2845513220 is an apocalyptic number.

2845513220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2845513220 is an abundant number, since it is smaller than the sum of its proper divisors (3682951996).

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

2845513220 is a wasteful number, since it uses less digits than its factorization.

2845513220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19172 (or 19170 counting only the distinct ones).

The product of its (nonzero) digits is 19200, while the sum is 32.

The square root of 2845513220 is about 53343.3521631328. The cubic root of 2845513220 is about 1417.0555299441.

The spelling of 2845513220 in words is "two billion, eight hundred forty-five million, five hundred thirteen thousand, two hundred twenty".