45729225242 has 16 divisors (see below), whose sum is σ = 72638677800. Its totient is φ = 21516699648.

The previous prime is 45729225221. The next prime is 45729225247. The reversal of 45729225242 is 24252292754.

It can be written as a sum of positive squares in 4 ways, for example, as 16931474641 + 28797750601 = 130121^2 + 169699^2 .

It is a junction number, because it is equal to n+sod(n) for n = 45729225193 and 45729225202.

It is not an unprimeable number, because it can be changed into a prime (45729225247) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 172148 + ... + 347984.

Almost surely, 2^45729225242 is an apocalyptic number.

45729225242 is a deficient number, since it is larger than the sum of its proper divisors (26909452558).

45729225242 is a wasteful number, since it uses less digits than its factorization.

45729225242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 183505.

The product of its digits is 806400, while the sum is 44.

The spelling of 45729225242 in words is "forty-five billion, seven hundred twenty-nine million, two hundred twenty-five thousand, two hundred forty-two".