2788238 has 8 divisors (see below), whose sum is σ = 4428432. Its totient is φ = 1312096.

The previous prime is 2788217. The next prime is 2788273. The reversal of 2788238 is 8328872.

2788238 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a super-2 number, since 2×2788238² = 15548542289288, which contains 22 as substring.

It is a congruent number.

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, 40970 + ... + 41037.

It is an arithmetic number, because the mean of its divisors is an integer number (553554).

2^2788238 is an apocalyptic number.

2788238 is a deficient number, since it is larger than the sum of its proper divisors (1640194).

2788238 is a wasteful number, since it uses less digits than its factorization.

2788238 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 82026.

The product of its digits is 43008, while the sum is 38.

The square root of 2788238 is about 1669.8017846439. The cubic root of 2788238 is about 140.7483397234.

The spelling of 2788238 in words is "two million, seven hundred eighty-eight thousand, two hundred thirty-eight".