4549378 has 4 divisors (see below), whose sum is σ = 6824070. Its totient is φ = 2274688.

The previous prime is 4549351. The next prime is 4549393. The reversal of 4549378 is 8739454.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 2350089 + 2199289 = 1533^2 + 1483^2 .

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a self number, because there is not a number n which added to its sum of digits gives 4549378.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1137343 + ... + 1137346.

Almost surely, 2^4549378 is an apocalyptic number.

4549378 is a deficient number, since it is larger than the sum of its proper divisors (2274692).

4549378 is a wasteful number, since it uses less digits than its factorization.

4549378 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2274691.

The product of its digits is 120960, while the sum is 40.

The square root of 4549378 is about 2132.9270967382. The cubic root of 4549378 is about 165.6980284572.

The spelling of 4549378 in words is "four million, five hundred forty-nine thousand, three hundred seventy-eight".