4065406445 has 8 divisors (see below), whose sum is σ = 4886802144. Its totient is φ = 3246782224.

The previous prime is 4065406403. The next prime is 4065406451. The reversal of 4065406445 is 5446045604.

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 4065406445 - 2²⁴ = 4048629229 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 4065406399 and 4065406408.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 689639 + ... + 695508.

It is an arithmetic number, because the mean of its divisors is an integer number (610850268).

Almost surely, 2^4065406445 is an apocalyptic number.

It is an amenable number.

4065406445 is a deficient number, since it is larger than the sum of its proper divisors (821395699).

4065406445 is a wasteful number, since it uses less digits than its factorization.

4065406445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1385739.

The product of its (nonzero) digits is 230400, while the sum is 38.

The square root of 4065406445 is about 63760.5398738122. The cubic root of 4065406445 is about 1596.0065049839.

The spelling of 4065406445 in words is "four billion, sixty-five million, four hundred six thousand, four hundred forty-five".