2643238 has 8 divisors (see below), whose sum is σ = 4269888. Its totient is φ = 1219944.

The previous prime is 2643227. The next prime is 2643239. The reversal of 2643238 is 8323462.

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

It is a d-powerful number, because it can be written as 2 + 6³ + 4¹⁰ + 3⁴ + 2⁵ + 3¹³ + 8 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2643239) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 50806 + ... + 50857.

It is an arithmetic number, because the mean of its divisors is an integer number (533736).

2^2643238 is an apocalyptic number.

2643238 is a deficient number, since it is larger than the sum of its proper divisors (1626650).

2643238 is a wasteful number, since it uses less digits than its factorization.

2643238 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 101678.

The product of its digits is 6912, while the sum is 28.

The square root of 2643238 is about 1625.8038012011. The cubic root of 2643238 is about 138.2649464399.

It can be divided in two parts, 26 and 43238, that added together give a square (43264 = 208²).

The spelling of 2643238 in words is "two million, six hundred forty-three thousand, two hundred thirty-eight".