4781842 has 8 divisors (see below), whose sum is σ = 7724556. Its totient is φ = 2206992.

The previous prime is 4781837. The next prime is 4781867. The reversal of 4781842 is 2481874.

It can be written as a sum of positive squares in 2 ways, for example, as 3759721 + 1022121 = 1939^2 + 1011^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 4781798 and 4781807.

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 3 ways as a sum of consecutive naturals, for example, 91933 + ... + 91984.

Almost surely, 2^4781842 is an apocalyptic number.

4781842 is a deficient number, since it is larger than the sum of its proper divisors (2942714).

4781842 is a wasteful number, since it uses less digits than its factorization.

4781842 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 183932.

The product of its digits is 14336, while the sum is 34.

The square root of 4781842 is about 2186.7423259269. The cubic root of 4781842 is about 168.4735552426.

Subtracting from 4781842 its reverse (2481874), we obtain a cube (2299968 = 132³).

The spelling of 4781842 in words is "four million, seven hundred eighty-one thousand, eight hundred forty-two".