45051244240 has 20 divisors (see below), whose sum is σ = 104744143044. Its totient is φ = 18020497664.

The previous prime is 45051244211. The next prime is 45051244253. The reversal of 45051244240 is 4244215054.

It can be written as a sum of positive squares in 2 ways, for example, as 7027804224 + 38023440016 = 83832^2 + 194996^2 .

It is a tau number, because it is divible by the number of its divisors (20).

It is a super-2 number, since 2×45051244240² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

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 3 ways as a sum of consecutive naturals, for example, 281570197 + ... + 281570356.

Almost surely, 2^45051244240 is an apocalyptic number.

45051244240 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

45051244240 is an abundant number, since it is smaller than the sum of its proper divisors (59692898804).

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

45051244240 is a wasteful number, since it uses less digits than its factorization.

45051244240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 563140566 (or 563140560 counting only the distinct ones).

The product of its (nonzero) digits is 25600, while the sum is 31.

Adding to 45051244240 its reverse (4244215054), we get a palindrome (49295459294).

The spelling of 45051244240 in words is "forty-five billion, fifty-one million, two hundred forty-four thousand, two hundred forty".