4045045 has 8 divisors (see below), whose sum is σ = 4864896. Its totient is φ = 3228816.

The previous prime is 4045009. The next prime is 4045049. The reversal of 4045045 is 5405404.

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 4045045 - 2⁷ = 4044917 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4045049) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3624 + ... + 4606.

It is an arithmetic number, because the mean of its divisors is an integer number (608112).

Almost surely, 2^4045045 is an apocalyptic number.

It is an amenable number.

4045045 is a deficient number, since it is larger than the sum of its proper divisors (819851).

4045045 is an equidigital number, since it uses as much as digits as its factorization.

4045045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1811.

The product of its (nonzero) digits is 1600, while the sum is 22.

The square root of 4045045 is about 2011.2297233285. The cubic root of 4045045 is about 159.3337530066. Note that the first 3 decimals are identical.

The spelling of 4045045 in words is "four million, forty-five thousand, forty-five".