2785238 has 4 divisors (see below), whose sum is σ = 4177860. Its totient is φ = 1392618.

The previous prime is 2785219. The next prime is 2785241. The reversal of 2785238 is 8325872.

It is a happy number.

It is a semiprime because it is the product of two primes.

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 = 2785198 and 2785207.

It is a congruent number.

It is an unprimeable number.

It is an upside-down number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 696308 + ... + 696311.

It is an arithmetic number, because the mean of its divisors is an integer number (1044465).

2^2785238 is an apocalyptic number.

2785238 is a deficient number, since it is larger than the sum of its proper divisors (1392622).

2785238 is a wasteful number, since it uses less digits than its factorization.

2785238 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1392621.

The product of its digits is 26880, while the sum is 35.

The square root of 2785238 is about 1668.9032326651. The cubic root of 2785238 is about 140.6978422949.

The spelling of 2785238 in words is "two million, seven hundred eighty-five thousand, two hundred thirty-eight".