4781844 has 36 divisors (see below), whose sum is σ = 12725440. Its totient is φ = 1509840.

The previous prime is 4781837. The next prime is 4781867. The reversal of 4781844 is 4481874.

It is a happy number.

4781844 is a `hidden beast` number, since 478 + 184 + 4 = 666.

4781844 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (36).

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

It is a nialpdrome in base 9.

It is a junction number, because it is equal to n+sod(n) for n = 4781799 and 4781808.

It is a congruent number.

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 2812 + ... + 4179.

Almost surely, 2^4781844 is an apocalyptic number.

It is an amenable number.

4781844 is an abundant number, since it is smaller than the sum of its proper divisors (7943596).

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

4781844 is a wasteful number, since it uses less digits than its factorization.

4781844 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7020 (or 7015 counting only the distinct ones).

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

The square root of 4781844 is about 2186.7427832281. The cubic root of 4781844 is about 168.4735787305.

It can be divided in two parts, 4781 and 844, that added together give a square (5625 = 75²).

The spelling of 4781844 in words is "four million, seven hundred eighty-one thousand, eight hundred forty-four".