4778424 has 96 divisors (see below), whose sum is σ = 15600000. Its totient is φ = 1290816.

The previous prime is 4778413. The next prime is 4778429. The reversal of 4778424 is 4248774.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4778429) 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 in 23 ways as a sum of consecutive naturals, for example, 9327 + ... + 9825.

It is an arithmetic number, because the mean of its divisors is an integer number (162500).

Almost surely, 2^4778424 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 4778424, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (7800000).

4778424 is an abundant number, since it is smaller than the sum of its proper divisors (10821576).

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

4778424 is a wasteful number, since it uses less digits than its factorization.

4778424 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 537 (or 530 counting only the distinct ones).

The product of its digits is 50176, while the sum is 36.

The square root of 4778424 is about 2185.9606583834. The cubic root of 4778424 is about 168.4334047547.

The spelling of 4778424 in words is "four million, seven hundred seventy-eight thousand, four hundred twenty-four".