2783538 has 32 divisors (see below), whose sum is σ = 6513600. Its totient is φ = 878688.

The previous prime is 2783537. The next prime is 2783549. The reversal of 2783538 is 8353872.

2783538 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a d-powerful number, because it can be written as 2⁴ + 7⁶ + 8² + 3¹¹ + 5⁹ + 3¹² + 8⁴ .

It is not an unprimeable number, because it can be changed into a prime (2783537) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 331 + ... + 2382.

It is an arithmetic number, because the mean of its divisors is an integer number (203550).

2^2783538 is an apocalyptic number.

2783538 is an abundant number, since it is smaller than the sum of its proper divisors (3730062).

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

2783538 is a wasteful number, since it uses less digits than its factorization.

2783538 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2743 (or 2737 counting only the distinct ones).

The product of its digits is 40320, while the sum is 36.

The square root of 2783538 is about 1668.3938383967. The cubic root of 2783538 is about 140.6692109880.

It can be divided in two parts, 2783 and 538, that added together give a triangular number (3321 = T₈₁).

The spelling of 2783538 in words is "two million, seven hundred eighty-three thousand, five hundred thirty-eight".