45442453220 has 48 divisors (see below), whose sum is σ = 96074037360. Its totient is φ = 18054352896.

The previous prime is 45442453213. The next prime is 45442453237. The reversal of 45442453220 is 2235424454.

It can be written as a sum of positive squares in 8 ways, for example, as 11235904 + 45431217316 = 3352^2 + 213146^2 .

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, 3900524 + ... + 3912156.

It is an arithmetic number, because the mean of its divisors is an integer number (2001542445).

Almost surely, 2^45442453220 is an apocalyptic number.

It is an amenable number.

45442453220 is an abundant number, since it is smaller than the sum of its proper divisors (50631584140).

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

45442453220 is a wasteful number, since it uses less digits than its factorization.

45442453220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12944 (or 12942 counting only the distinct ones).

The product of its (nonzero) digits is 153600, while the sum is 35.

Adding to 45442453220 its reverse (2235424454), we get a palindrome (47677877674).

The spelling of 45442453220 in words is "forty-five billion, four hundred forty-two million, four hundred fifty-three thousand, two hundred twenty".