4429780345 has 4 divisors (see below), whose sum is σ = 5315736420. Its totient is φ = 3543824272.

The previous prime is 4429780319. The next prime is 4429780349. The reversal of 4429780345 is 5430879244.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 3236699664 + 1193080681 = 56892^2 + 34541^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-4429780345 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 4429780295 and 4429780304.

It is not an unprimeable number, because it can be changed into a prime (4429780349) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 442978030 + ... + 442978039.

It is an arithmetic number, because the mean of its divisors is an integer number (1328934105).

Almost surely, 2^4429780345 is an apocalyptic number.

It is an amenable number.

4429780345 is a deficient number, since it is larger than the sum of its proper divisors (885956075).

4429780345 is an equidigital number, since it uses as much as digits as its factorization.

4429780345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 885956074.

The product of its (nonzero) digits is 967680, while the sum is 46.

The square root of 4429780345 is about 66556.5950526317. The cubic root of 4429780345 is about 1642.3311515635.

The spelling of 4429780345 in words is "four billion, four hundred twenty-nine million, seven hundred eighty thousand, three hundred forty-five".