5645345442 has 32 divisors (see below), whose sum is σ = 12319781184. Its totient is φ = 1710340800.

The previous prime is 5645345441. The next prime is 5645345471. The reversal of 5645345442 is 2445435465.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 5645345394 and 5645345403.

It is not an unprimeable number, because it can be changed into a prime (5645345441) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 599692 + ... + 609032.

It is an arithmetic number, because the mean of its divisors is an integer number (384993162).

Almost surely, 2^5645345442 is an apocalyptic number.

5645345442 is an abundant number, since it is smaller than the sum of its proper divisors (6674435742).

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

5645345442 is a wasteful number, since it uses less digits than its factorization.

5645345442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18514.

The product of its digits is 1152000, while the sum is 42.

The square root of 5645345442 is about 75135.5138533038. The cubic root of 5645345442 is about 1780.5882668274.

The spelling of 5645345442 in words is "five billion, six hundred forty-five million, three hundred forty-five thousand, four hundred forty-two".