3443636745 has 12 divisors (see below), whose sum is σ = 5968970436. Its totient is φ = 1836606240.

The previous prime is 3443636743. The next prime is 3443636761. The reversal of 3443636745 is 5476363443.

3443636745 is a `hidden beast` number, since 3 + 4 + 4 + 3 + 636 + 7 + 4 + 5 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 1194600969 + 2249035776 = 34563^2 + 47424^2 .

It is not a de Polignac number, because 3443636745 - 2¹ = 3443636743 is a prime.

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (45), and also a Moran number because the ratio is a prime number: 76525261 = 3443636745 / (3 + 4 + 4 + 3 + 6 + 3 + 6 + 7 + 4 + 5).

It is a self number, because there is not a number n which added to its sum of digits gives 3443636745.

It is not an unprimeable number, because it can be changed into a prime (3443636743) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 38262586 + ... + 38262675.

It is an arithmetic number, because the mean of its divisors is an integer number (497414203).

Almost surely, 2^3443636745 is an apocalyptic number.

It is an amenable number.

3443636745 is a deficient number, since it is larger than the sum of its proper divisors (2525333691).

3443636745 is a wasteful number, since it uses less digits than its factorization.

3443636745 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 76525272 (or 76525269 counting only the distinct ones).

The product of its digits is 2177280, while the sum is 45.

The square root of 3443636745 is about 58682.5079985510. The cubic root of 3443636745 is about 1510.1002440650.

The spelling of 3443636745 in words is "three billion, four hundred forty-three million, six hundred thirty-six thousand, seven hundred forty-five".