4447390945 has 8 divisors (see below), whose sum is σ = 5340476736. Its totient is φ = 3555507696.

The previous prime is 4447390931. The next prime is 4447390949. The reversal of 4447390945 is 5490937444.

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 4447390945 - 2⁷ = 4447390817 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4447390949) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 292477 + ... + 307306.

It is an arithmetic number, because the mean of its divisors is an integer number (667559592).

Almost surely, 2^4447390945 is an apocalyptic number.

It is an amenable number.

4447390945 is a deficient number, since it is larger than the sum of its proper divisors (893085791).

4447390945 is a wasteful number, since it uses less digits than its factorization.

4447390945 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 601271.

The product of its (nonzero) digits is 2177280, while the sum is 49.

The square root of 4447390945 is about 66688.7617593849. The cubic root of 4447390945 is about 1644.5046373864.

The spelling of 4447390945 in words is "four billion, four hundred forty-seven million, three hundred ninety thousand, nine hundred forty-five".