4045605 has 16 divisors (see below), whose sum is σ = 6514560. Its totient is φ = 2143808.

The previous prime is 4045603. The next prime is 4045633. The reversal of 4045605 is 5065404.

It is a cyclic number.

It is not a de Polignac number, because 4045605 - 2¹ = 4045603 is a prime.

It is a zygodrome in base 14.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4045603) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1816 + ... + 3374.

It is an arithmetic number, because the mean of its divisors is an integer number (407160).

Almost surely, 2^4045605 is an apocalyptic number.

It is an amenable number.

4045605 is a deficient number, since it is larger than the sum of its proper divisors (2468955).

4045605 is a wasteful number, since it uses less digits than its factorization.

4045605 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1740.

The product of its (nonzero) digits is 2400, while the sum is 24.

The square root of 4045605 is about 2011.3689368189. The cubic root of 4045605 is about 159.3411054411.

The spelling of 4045605 in words is "four million, forty-five thousand, six hundred five".