4406661445 has 4 divisors (see below), whose sum is σ = 5287993740. Its totient is φ = 3525329152.

The previous prime is 4406661437. The next prime is 4406661473. The reversal of 4406661445 is 5441666044.

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 1227731521 + 3178929924 = 35039^2 + 56382^2 .

It is a cyclic number.

It is not a de Polignac number, because 4406661445 - 2³ = 4406661437 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 4406661398 and 4406661407.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 440666140 + ... + 440666149.

It is an arithmetic number, because the mean of its divisors is an integer number (1321998435).

Almost surely, 2^4406661445 is an apocalyptic number.

It is an amenable number.

4406661445 is a deficient number, since it is larger than the sum of its proper divisors (881332295).

4406661445 is an equidigital number, since it uses as much as digits as its factorization.

4406661445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 881332294.

The product of its (nonzero) digits is 276480, while the sum is 40.

The square root of 4406661445 is about 66382.6893474496. The cubic root of 4406661445 is about 1639.4690732555.

The spelling of 4406661445 in words is "four billion, four hundred six million, six hundred sixty-one thousand, four hundred forty-five".