4045394 has 8 divisors (see below), whose sum is σ = 6171120. Its totient is φ = 1988356.

The previous prime is 4045387. The next prime is 4045399. The reversal of 4045394 is 4935404.

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

It is not an unprimeable number, because it can be changed into a prime (4045399) 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, 17024 + ... + 17259.

It is an arithmetic number, because the mean of its divisors is an integer number (771390).

Almost surely, 2^4045394 is an apocalyptic number.

4045394 is a deficient number, since it is larger than the sum of its proper divisors (2125726).

4045394 is a wasteful number, since it uses less digits than its factorization.

4045394 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34344.

The product of its (nonzero) digits is 8640, while the sum is 29.

The square root of 4045394 is about 2011.3164842958. The cubic root of 4045394 is about 159.3383352285.

The spelling of 4045394 in words is "four million, forty-five thousand, three hundred ninety-four".