45144204040 has 96 divisors (see below), whose sum is σ = 114351352920. Its totient is φ = 15943809024.

The previous prime is 45144204031. The next prime is 45144204067. The reversal of 45144204040 is 4040244154.

It can be written as a sum of positive squares in 4 ways, for example, as 30829038724 + 14315165316 = 175582^2 + 119646^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 193024 + ... + 357136.

Almost surely, 2^45144204040 is an apocalyptic number.

45144204040 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 45144204040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (57175676460).

45144204040 is an abundant number, since it is smaller than the sum of its proper divisors (69207148880).

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

45144204040 is a wasteful number, since it uses less digits than its factorization.

45144204040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 164183 (or 164156 counting only the distinct ones).

The product of its (nonzero) digits is 10240, while the sum is 28.

Adding to 45144204040 its reverse (4040244154), we get a palindrome (49184448194).

The spelling of 45144204040 in words is "forty-five billion, one hundred forty-four million, two hundred four thousand, forty".