4781642 has 8 divisors (see below), whose sum is σ = 7184100. Its totient is φ = 2386944.

The previous prime is 4781629. The next prime is 4781653. The reversal of 4781642 is 2461874.

It can be written as a sum of positive squares in 2 ways, for example, as 4532641 + 249001 = 2129^2 + 499^2 .

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 = 4781599 and 4781608.

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, 17 + ... + 3092.

Almost surely, 2^4781642 is an apocalyptic number.

4781642 is a deficient number, since it is larger than the sum of its proper divisors (2402458).

4781642 is a wasteful number, since it uses less digits than its factorization.

4781642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3880.

The product of its digits is 10752, while the sum is 32.

The square root of 4781642 is about 2186.6965953236. The cubic root of 4781642 is about 168.4712064141.

The spelling of 4781642 in words is "four million, seven hundred eighty-one thousand, six hundred forty-two".