2800238 has 8 divisors (see below), whose sum is σ = 4800432. Its totient is φ = 1200096.

The previous prime is 2800219. The next prime is 2800241. The reversal of 2800238 is 8320082.

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

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 99995 + ... + 100022.

It is an arithmetic number, because the mean of its divisors is an integer number (600054).

2^2800238 is an apocalyptic number.

2800238 is a deficient number, since it is larger than the sum of its proper divisors (2000194).

2800238 is a wasteful number, since it uses less digits than its factorization.

2800238 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 200026.

The product of its (nonzero) digits is 768, while the sum is 23.

The square root of 2800238 is about 1673.3911676593. The cubic root of 2800238 is about 140.9499679974.

The spelling of 2800238 in words is "two million, eight hundred thousand, two hundred thirty-eight".