4048978 has 4 divisors (see below), whose sum is σ = 6073470. Its totient is φ = 2024488.

The previous prime is 4048973. The next prime is 4048991. The reversal of 4048978 is 8798404.

4048978 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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., 2601769 + 1447209 = 1613^2 + 1203^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 4048978.

It is not an unprimeable number, because it can be changed into a prime (4048973) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1012243 + ... + 1012246.

Almost surely, 2^4048978 is an apocalyptic number.

4048978 is a deficient number, since it is larger than the sum of its proper divisors (2024492).

4048978 is a wasteful number, since it uses less digits than its factorization.

4048978 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2024491.

The product of its (nonzero) digits is 64512, while the sum is 40.

The square root of 4048978 is about 2012.2072457876. The cubic root of 4048978 is about 159.3853763845.

The spelling of 4048978 in words is "four million, forty-eight thousand, nine hundred seventy-eight".