4045217 has 16 divisors (see below), whose sum is σ = 4700160. Its totient is φ = 3445200.

The previous prime is 4045213. The next prime is 4045219. The reversal of 4045217 is 7125404.

It is not a de Polignac number, because 4045217 - 2² = 4045213 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (23).

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 4045192 and 4045201.

It is not an unprimeable number, because it can be changed into a prime (4045213) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14792 + ... + 15062.

It is an arithmetic number, because the mean of its divisors is an integer number (293760).

Almost surely, 2^4045217 is an apocalyptic number.

It is an amenable number.

4045217 is a deficient number, since it is larger than the sum of its proper divisors (654943).

4045217 is a wasteful number, since it uses less digits than its factorization.

4045217 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 364.

The product of its (nonzero) digits is 1120, while the sum is 23.

The square root of 4045217 is about 2011.2724827830. The cubic root of 4045217 is about 159.3360113266.

The spelling of 4045217 in words is "four million, forty-five thousand, two hundred seventeen".