4445645570 has 8 divisors (see below), whose sum is σ = 8002162044. Its totient is φ = 1778258224.

The previous prime is 4445645531. The next prime is 4445645579. The reversal of 4445645570 is 755465444.

It can be written as a sum of positive squares in 2 ways, for example, as 3589088281 + 856557289 = 59909^2 + 29267^2 .

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

It is not an unprimeable number, because it can be changed into a prime (4445645579) 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, 222282269 + ... + 222282288.

Almost surely, 2^4445645570 is an apocalyptic number.

4445645570 is a deficient number, since it is larger than the sum of its proper divisors (3556516474).

4445645570 is a wasteful number, since it uses less digits than its factorization.

4445645570 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 444564564.

The product of its (nonzero) digits is 1344000, while the sum is 44.

The square root of 4445645570 is about 66675.6744997754. The cubic root of 4445645570 is about 1644.2894810638.

The spelling of 4445645570 in words is "four billion, four hundred forty-five million, six hundred forty-five thousand, five hundred seventy".