2798420 has 12 divisors (see below), whose sum is σ = 5876724. Its totient is φ = 1119360.

The previous prime is 2798381. The next prime is 2798437. The reversal of 2798420 is 248972.

2798420 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 283024 + 2515396 = 532^2 + 1586^2 .

It is a hoax number, since the sum of its digits (32) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 69941 + ... + 69980.

It is an arithmetic number, because the mean of its divisors is an integer number (489727).

2^2798420 is an apocalyptic number.

2798420 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2798420 is an abundant number, since it is smaller than the sum of its proper divisors (3078304).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2798420 is a wasteful number, since it uses less digits than its factorization.

2798420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 139930 (or 139928 counting only the distinct ones).

The product of its (nonzero) digits is 8064, while the sum is 32.

The square root of 2798420 is about 1672.8478711467. The cubic root of 2798420 is about 140.9194583864.

The spelling of 2798420 in words is "two million, seven hundred ninety-eight thousand, four hundred twenty".