45120340240 has 40 divisors (see below), whose sum is σ = 104914624320. Its totient is φ = 18046444416.

The previous prime is 45120340217. The next prime is 45120340297. The reversal of 45120340240 is 4204302154.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (40).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1167141 + ... + 1205179.

It is an arithmetic number, because the mean of its divisors is an integer number (2622865608).

Almost surely, 2^45120340240 is an apocalyptic number.

45120340240 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

45120340240 is an abundant number, since it is smaller than the sum of its proper divisors (59794284080).

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

45120340240 is a wasteful number, since it uses less digits than its factorization.

45120340240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52879 (or 52873 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 25.

Adding to 45120340240 its reverse (4204302154), we get a palindrome (49324642394).

The spelling of 45120340240 in words is "forty-five billion, one hundred twenty million, three hundred forty thousand, two hundred forty".