4918578 has 16 divisors (see below), whose sum is σ = 11242560. Its totient is φ = 1405296.

The previous prime is 4918577. The next prime is 4918601. The reversal of 4918578 is 8758194.

It is a Harshad number since it is a multiple of its sum of digits (42), and also a Moran number because the ratio is a prime number: 117109 = 4918578 / (4 + 9 + 1 + 8 + 5 + 7 + 8).

It is not an unprimeable number, because it can be changed into a prime (4918577) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 58513 + ... + 58596.

It is an arithmetic number, because the mean of its divisors is an integer number (702660).

Almost surely, 2^4918578 is an apocalyptic number.

4918578 is an abundant number, since it is smaller than the sum of its proper divisors (6323982).

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

4918578 is a wasteful number, since it uses less digits than its factorization.

4918578 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 117121.

The product of its digits is 80640, while the sum is 42.

The square root of 4918578 is about 2217.7867345622. The cubic root of 4918578 is about 170.0643124605.

The spelling of 4918578 in words is "four million, nine hundred eighteen thousand, five hundred seventy-eight".