2798438 has 8 divisors (see below), whose sum is σ = 4444632. Its totient is φ = 1316896.

The previous prime is 2798437. The next prime is 2798449. The reversal of 2798438 is 8348972.

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

It is a junction number, because it is equal to n+sod(n) for n = 2798395 and 2798404.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2798437) 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, 41120 + ... + 41187.

It is an arithmetic number, because the mean of its divisors is an integer number (555579).

2^2798438 is an apocalyptic number.

2798438 is a deficient number, since it is larger than the sum of its proper divisors (1646194).

2798438 is a wasteful number, since it uses less digits than its factorization.

2798438 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 82326.

The product of its digits is 96768, while the sum is 41.

The square root of 2798438 is about 1672.8532511849. The cubic root of 2798438 is about 140.9197605265.

The spelling of 2798438 in words is "two million, seven hundred ninety-eight thousand, four hundred thirty-eight".