2798040 has 64 divisors (see below), whose sum is σ = 9596160. Its totient is φ = 639360.

The previous prime is 2798023. The next prime is 2798069. The reversal of 2798040 is 408972.

2798040 = T₂₀₃ + T₂₀₄ + ... + T₂₉₂.

2798040 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 2797989 and 2798007.

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 15 ways as a sum of consecutive naturals, for example, 826 + ... + 2505.

It is an arithmetic number, because the mean of its divisors is an integer number (149940).

2^2798040 is an apocalyptic number.

2798040 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2798040 is an abundant number, since it is smaller than the sum of its proper divisors (6798120).

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

2798040 is a wasteful number, since it uses less digits than its factorization.

2798040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3352 (or 3348 counting only the distinct ones).

The product of its (nonzero) digits is 4032, while the sum is 30.

The square root of 2798040 is about 1672.7342885228. The cubic root of 2798040 is about 140.9130795705.

The spelling of 2798040 in words is "two million, seven hundred ninety-eight thousand, forty".