45430045220 has 72 divisors (see below), whose sum is σ = 113978636856. Its totient is φ = 15155030016.

The previous prime is 45430045189. The next prime is 45430045231. The reversal of 45430045220 is 2254003454.

It can be written as a sum of positive squares in 4 ways, for example, as 18411233344 + 27018811876 = 135688^2 + 164374^2 .

It is an unprimeable number.

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 23 ways as a sum of consecutive naturals, for example, 590189 + ... + 662708.

It is an arithmetic number, because the mean of its divisors is an integer number (1583036623).

Almost surely, 2^45430045220 is an apocalyptic number.

It is an amenable number.

45430045220 is an abundant number, since it is smaller than the sum of its proper divisors (68548591636).

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

45430045220 is a wasteful number, since it uses less digits than its factorization.

45430045220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1252957 (or 1252948 counting only the distinct ones).

The product of its (nonzero) digits is 19200, while the sum is 29.

Adding to 45430045220 its reverse (2254003454), we get a palindrome (47684048674).

The spelling of 45430045220 in words is "forty-five billion, four hundred thirty million, forty-five thousand, two hundred twenty".