2045441321 has 8 divisors (see below), whose sum is σ = 2550160704. Its totient is φ = 1593850320.

The previous prime is 2045441303. The next prime is 2045441341. The reversal of 2045441321 is 1231445402.

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

It is a cyclic number.

It is not a de Polignac number, because 2045441321 - 2¹⁸ = 2045179177 is a prime.

It is a super-3 number, since 3×2045441321³ (a number of 29 digits) contains 333 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (2045441341) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13282010 + ... + 13282163.

It is an arithmetic number, because the mean of its divisors is an integer number (318770088).

Almost surely, 2^2045441321 is an apocalyptic number.

It is an amenable number.

2045441321 is a deficient number, since it is larger than the sum of its proper divisors (504719383).

2045441321 is a wasteful number, since it uses less digits than its factorization.

2045441321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26564191.

The product of its (nonzero) digits is 3840, while the sum is 26.

The square root of 2045441321 is about 45226.5554845823. Note that the first 3 decimals coincide. The cubic root of 2045441321 is about 1269.3917605339.

Adding to 2045441321 its reverse (1231445402), we get a palindrome (3276886723).

The spelling of 2045441321 in words is "two billion, forty-five million, four hundred forty-one thousand, three hundred twenty-one".