2045601320 has 64 divisors (see below), whose sum is σ = 5279040000. Its totient is φ = 698826240.

The previous prime is 2045601307. The next prime is 2045601343. The reversal of 2045601320 is 231065402.

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, 65681 + ... + 91679.

It is an arithmetic number, because the mean of its divisors is an integer number (82485000).

Almost surely, 2^2045601320 is an apocalyptic number.

2045601320 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2045601320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2639520000).

2045601320 is an abundant number, since it is smaller than the sum of its proper divisors (3233438680).

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

2045601320 is a wasteful number, since it uses less digits than its factorization.

2045601320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26298 (or 26294 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 23.

The square root of 2045601320 is about 45228.3243112101. The cubic root of 2045601320 is about 1269.4248578929.

Adding to 2045601320 its reverse (231065402), we get a palindrome (2276666722).

The spelling of 2045601320 in words is "two billion, forty-five million, six hundred one thousand, three hundred twenty".