2045305320 has 64 divisors (see below), whose sum is σ = 6278627520. Its totient is φ = 532729344.

The previous prime is 2045305319. The next prime is 2045305349. The reversal of 2045305320 is 235035402.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 193029 + ... + 203348.

It is an arithmetic number, because the mean of its divisors is an integer number (98103555).

Almost surely, 2^2045305320 is an apocalyptic number.

2045305320 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2045305320 is an abundant number, since it is smaller than the sum of its proper divisors (4233322200).

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

2045305320 is a wasteful number, since it uses less digits than its factorization.

2045305320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 396434 (or 396430 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 24.

The square root of 2045305320 is about 45225.0519071012. The cubic root of 2045305320 is about 1269.3636260390.

The spelling of 2045305320 in words is "two billion, forty-five million, three hundred five thousand, three hundred twenty".