2798456 has 32 divisors (see below), whose sum is σ = 5581440. Its totient is φ = 1312608.

The previous prime is 2798449. The next prime is 2798459. The reversal of 2798456 is 6548972.

2798456 is nontrivially palindromic in base 7.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2798459) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12215 + ... + 12441.

It is an arithmetic number, because the mean of its divisors is an integer number (174420).

2^2798456 is an apocalyptic number.

It is an amenable number.

2798456 is a deficient number, since it is larger than the sum of its proper divisors (2782984).

2798456 is a wasteful number, since it uses less digits than its factorization.

2798456 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 323 (or 319 counting only the distinct ones).

The product of its digits is 120960, while the sum is 41.

The square root of 2798456 is about 1672.8586312059. The cubic root of 2798456 is about 140.9200626654.

The spelling of 2798456 in words is "two million, seven hundred ninety-eight thousand, four hundred fifty-six".