4045745 has 16 divisors (see below), whose sum is σ = 5609088. Its totient is φ = 2768640.

The previous prime is 4045721. The next prime is 4045763. The reversal of 4045745 is 5475404.

It is not a de Polignac number, because 4045745 - 2⁶ = 4045681 is a prime.

It is a Duffinian number.

It is a Curzon 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, 1229 + ... + 3098.

It is an arithmetic number, because the mean of its divisors is an integer number (350568).

Almost surely, 2^4045745 is an apocalyptic number.

It is an amenable number.

4045745 is a deficient number, since it is larger than the sum of its proper divisors (1563343).

4045745 is a wasteful number, since it uses less digits than its factorization.

4045745 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4360.

The product of its (nonzero) digits is 11200, while the sum is 29.

The square root of 4045745 is about 2011.4037386860. The cubic root of 4045745 is about 159.3429434437.

The spelling of 4045745 in words is "four million, forty-five thousand, seven hundred forty-five".