2798942 has 4 divisors (see below), whose sum is σ = 4198416. Its totient is φ = 1399470.

The previous prime is 2798941. The next prime is 2798951. The reversal of 2798942 is 2498972.

It is a semiprime because it is the product of two primes.

It is a self number, because there is not a number n which added to its sum of digits gives 2798942.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2798941) by changing a digit.

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 as a sum of consecutive naturals, namely, 699734 + ... + 699737.

It is an arithmetic number, because the mean of its divisors is an integer number (1049604).

2^2798942 is an apocalyptic number.

2798942 is a deficient number, since it is larger than the sum of its proper divisors (1399474).

2798942 is a wasteful number, since it uses less digits than its factorization.

2798942 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1399473.

The product of its digits is 72576, while the sum is 41.

The square root of 2798942 is about 1673.0038852316. The cubic root of 2798942 is about 140.9282199238.

The spelling of 2798942 in words is "two million, seven hundred ninety-eight thousand, nine hundred forty-two".