4493945245 has 8 divisors (see below), whose sum is σ = 5393117016. Its totient is φ = 3594901056.

The previous prime is 4493945237. The next prime is 4493945249. The reversal of 4493945245 is 5425493944.

It can be written as a sum of positive squares in 4 ways, for example, as 403447396 + 4090497849 = 20086^2 + 63957^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 4493945245 - 2³ = 4493945237 is a prime.

It is a super-2 number, since 2×4493945245² = 40391087730116220050, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4493945249) 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 7 ways as a sum of consecutive naturals, for example, 83679 + ... + 126451.

It is an arithmetic number, because the mean of its divisors is an integer number (674139627).

Almost surely, 2^4493945245 is an apocalyptic number.

It is an amenable number.

4493945245 is a deficient number, since it is larger than the sum of its proper divisors (899171771).

4493945245 is a wasteful number, since it uses less digits than its factorization.

4493945245 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63791.

The product of its digits is 3110400, while the sum is 49.

The square root of 4493945245 is about 67036.8946551076. The cubic root of 4493945245 is about 1650.2228343062. Note that the first 3 decimals are identical.

The spelling of 4493945245 in words is "four billion, four hundred ninety-three million, nine hundred forty-five thousand, two hundred forty-five".