4785438 has 48 divisors (see below), whose sum is σ = 11433744. Its totient is φ = 1330560.

The previous prime is 4785421. The next prime is 4785463. The reversal of 4785438 is 8345874.

It is an alternating number because its digits alternate between even and odd.

It is a junction number, because it is equal to n+sod(n) for n = 4785396 and 4785405.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 11856 + ... + 12252.

It is an arithmetic number, because the mean of its divisors is an integer number (238203).

Almost surely, 2^4785438 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 4785438, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5716872).

4785438 is an abundant number, since it is smaller than the sum of its proper divisors (6648306).

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

4785438 is a wasteful number, since it uses less digits than its factorization.

4785438 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 457 (or 450 counting only the distinct ones).

The product of its digits is 107520, while the sum is 39.

The square root of 4785438 is about 2187.5643990521. The cubic root of 4785438 is about 168.5157760091.

The spelling of 4785438 in words is "four million, seven hundred eighty-five thousand, four hundred thirty-eight".