4045578 has 8 divisors (see below), whose sum is σ = 8091168. Its totient is φ = 1348524.

The previous prime is 4045577. The next prime is 4045583. The reversal of 4045578 is 8755404.

It is a sphenic number, since it is the product of 3 distinct primes.

4045578 is an admirable number.

It is a Smith number, since the sum of its digits (33) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (4045577) 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 3 ways as a sum of consecutive naturals, for example, 337126 + ... + 337137.

It is an arithmetic number, because the mean of its divisors is an integer number (1011396).

Almost surely, 2^4045578 is an apocalyptic number.

4045578 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

4045578 is a wasteful number, since it uses less digits than its factorization.

4045578 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 674268.

The product of its (nonzero) digits is 22400, while the sum is 33.

The square root of 4045578 is about 2011.3622249610. The cubic root of 4045578 is about 159.3407509643.

The spelling of 4045578 in words is "four million, forty-five thousand, five hundred seventy-eight".