5645235398 has 24 divisors (see below), whose sum is σ = 9364807704. Its totient is φ = 2550255840.

The previous prime is 5645235397. The next prime is 5645235443. The reversal of 5645235398 is 8935325465.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5645235397) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 32111 + ... + 111002.

It is an arithmetic number, because the mean of its divisors is an integer number (390200321).

Almost surely, 2^5645235398 is an apocalyptic number.

5645235398 is a deficient number, since it is larger than the sum of its proper divisors (3719572306).

5645235398 is a wasteful number, since it uses less digits than its factorization.

5645235398 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 143300 (or 143289 counting only the distinct ones).

The product of its digits is 3888000, while the sum is 50.

The square root of 5645235398 is about 75134.7815462320. The cubic root of 5645235398 is about 1780.5766971587.

The spelling of 5645235398 in words is "five billion, six hundred forty-five million, two hundred thirty-five thousand, three hundred ninety-eight".