2878238 has 8 divisors (see below), whose sum is σ = 4709880. Its totient is φ = 1308280.

The previous prime is 2878231. The next prime is 2878247. The reversal of 2878238 is 8328782.

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

It is an Ulam number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2878231) 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, 65393 + ... + 65436.

It is an arithmetic number, because the mean of its divisors is an integer number (588735).

2^2878238 is an apocalyptic number.

2878238 is a deficient number, since it is larger than the sum of its proper divisors (1831642).

2878238 is a wasteful number, since it uses less digits than its factorization.

2878238 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 130842.

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

The square root of 2878238 is about 1696.5370611926. The cubic root of 2878238 is about 142.2467112326.

The spelling of 2878238 in words is "two million, eight hundred seventy-eight thousand, two hundred thirty-eight".