4523778 has 72 divisors (see below), whose sum is σ = 11950848. Its totient is φ = 1230768.

The previous prime is 4523747. The next prime is 4523791. The reversal of 4523778 is 8773254.

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 20175 + ... + 20397.

It is an arithmetic number, because the mean of its divisors is an integer number (165984).

Almost surely, 2^4523778 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 4523778, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5975424).

4523778 is an abundant number, since it is smaller than the sum of its proper divisors (7427070).

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

4523778 is a wasteful number, since it uses less digits than its factorization.

4523778 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 268 (or 258 counting only the distinct ones).

The product of its digits is 47040, while the sum is 36.

The square root of 4523778 is about 2126.9174878213. The cubic root of 4523778 is about 165.3866414917.

The spelling of 4523778 in words is "four million, five hundred twenty-three thousand, seven hundred seventy-eight".