2045421132 has 12 divisors (see below), whose sum is σ = 4772649336. Its totient is φ = 681807040.

The previous prime is 2045421121. The next prime is 2045421149. The reversal of 2045421132 is 2311245402.

It is a tau number, because it is divible by the number of its divisors (12).

It is a super-2 number, since 2×2045421132² = 8367495214464322848, which contains 22 as substring.

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 3 ways as a sum of consecutive naturals, for example, 85225869 + ... + 85225892.

It is an arithmetic number, because the mean of its divisors is an integer number (397720778).

Almost surely, 2^2045421132 is an apocalyptic number.

It is an amenable number.

2045421132 is an abundant number, since it is smaller than the sum of its proper divisors (2727228204).

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

2045421132 is a wasteful number, since it uses less digits than its factorization.

2045421132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 170451768 (or 170451766 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 24.

The square root of 2045421132 is about 45226.3322855170. The cubic root of 2045421132 is about 1269.3875841191.

Adding to 2045421132 its reverse (2311245402), we get a palindrome (4356666534).

The spelling of 2045421132 in words is "two billion, forty-five million, four hundred twenty-one thousand, one hundred thirty-two".