4543994 has 16 divisors (see below), whose sum is σ = 8389248. Its totient is φ = 1797552.

The previous prime is 4543993. The next prime is 4544009. The reversal of 4543994 is 4993454.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4543991) 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 7 ways as a sum of consecutive naturals, for example, 12302 + ... + 12665.

It is an arithmetic number, because the mean of its divisors is an integer number (524328).

Almost surely, 2^4543994 is an apocalyptic number.

4543994 is a deficient number, since it is larger than the sum of its proper divisors (3845254).

4543994 is a wasteful number, since it uses less digits than its factorization.

4543994 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24989.

The product of its digits is 77760, while the sum is 38.

The square root of 4543994 is about 2131.6646077655. The cubic root of 4543994 is about 165.6326370752.

The spelling of 4543994 in words is "four million, five hundred forty-three thousand, nine hundred ninety-four".