45120340242 has 24 divisors (see below), whose sum is σ = 98728669260. Its totient is φ = 14891200800.

The previous prime is 45120340217. The next prime is 45120340297. The reversal of 45120340242 is 24204302154.

45120340242 is a `hidden beast` number, since 4 + 51 + 203 + 402 + 4 + 2 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 44875761921 + 244578321 = 211839^2 + 15639^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 12407517 + ... + 12411152.

Almost surely, 2^45120340242 is an apocalyptic number.

45120340242 is an abundant number, since it is smaller than the sum of its proper divisors (53608329018).

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

45120340242 is a wasteful number, since it uses less digits than its factorization.

45120340242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24818778 (or 24818775 counting only the distinct ones).

The product of its (nonzero) digits is 7680, while the sum is 27.

Adding to 45120340242 its reverse (24204302154), we get a palindrome (69324642396).

The spelling of 45120340242 in words is "forty-five billion, one hundred twenty million, three hundred forty thousand, two hundred forty-two".