3809445 has 16 divisors (see below), whose sum is σ = 6454080. Its totient is φ = 1912064.

The previous prime is 3809431. The next prime is 3809461. The reversal of 3809445 is 5449083.

It is a cyclic number.

It is not a de Polignac number, because 3809445 - 2⁶ = 3809381 is a prime.

3809445 is a lucky number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7215 + ... + 7724.

It is an arithmetic number, because the mean of its divisors is an integer number (403380).

Almost surely, 2^3809445 is an apocalyptic number.

It is an amenable number.

3809445 is a deficient number, since it is larger than the sum of its proper divisors (2644635).

3809445 is a wasteful number, since it uses less digits than its factorization.

3809445 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14964.

The product of its (nonzero) digits is 17280, while the sum is 33.

The square root of 3809445 is about 1951.7799568599. The cubic root of 3809445 is about 156.1782561297.

The spelling of 3809445 in words is "three million, eight hundred nine thousand, four hundred forty-five".