4781448 has 96 divisors (see below), whose sum is σ = 15163200. Its totient is φ = 1332864.

The previous prime is 4781443. The next prime is 4781449. The reversal of 4781448 is 8441874.

It is a happy number.

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 an Ulam number.

It is not an unprimeable number, because it can be changed into a prime (4781443) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 26623 + ... + 26801.

It is an arithmetic number, because the mean of its divisors is an integer number (157950).

Almost surely, 2^4781448 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 4781448, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (7581600).

4781448 is an abundant number, since it is smaller than the sum of its proper divisors (10381752).

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

4781448 is a wasteful number, since it uses less digits than its factorization.

4781448 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 251 (or 244 counting only the distinct ones).

The product of its digits is 28672, while the sum is 36.

The square root of 4781448 is about 2186.6522357247. The cubic root of 4781448 is about 168.4689279878.

The spelling of 4781448 in words is "four million, seven hundred eighty-one thousand, four hundred forty-eight".