2945305669 has 8 divisors (see below), whose sum is σ = 3000670400. Its totient is φ = 2890346976.

The previous prime is 2945305663. The next prime is 2945305673. The reversal of 2945305669 is 9665035492.

It is a happy number.

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 2945305669 - 2¹³ = 2945297477 is a prime.

It is a super-2 number, since 2×2945305669² = 17349650967687075122, 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 (2945305663) 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, 86847 + ... + 115900.

It is an arithmetic number, because the mean of its divisors is an integer number (375083800).

Almost surely, 2^2945305669 is an apocalyptic number.

It is an amenable number.

2945305669 is a deficient number, since it is larger than the sum of its proper divisors (55364731).

2945305669 is a wasteful number, since it uses less digits than its factorization.

2945305669 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 203019.

The product of its (nonzero) digits is 1749600, while the sum is 49.

The square root of 2945305669 is about 54270.6704307216. The cubic root of 2945305669 is about 1433.4309954668.

The spelling of 2945305669 in words is "two billion, nine hundred forty-five million, three hundred five thousand, six hundred sixty-nine".