2798390 has 24 divisors (see below), whose sum is σ = 5860512. Its totient is φ = 959280.

The previous prime is 2798381. The next prime is 2798437. The reversal of 2798390 is 938972.

It is a d-powerful number, because it can be written as 2¹⁹ + 7⁶ + 9 + 8⁷ + 3⁵ + 9⁵ + 0 .

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2366 + ... + 3345.

It is an arithmetic number, because the mean of its divisors is an integer number (244188).

2^2798390 is an apocalyptic number.

2798390 is an abundant number, since it is smaller than the sum of its proper divisors (3062122).

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

2798390 is a wasteful number, since it uses less digits than its factorization.

2798390 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5732 (or 5725 counting only the distinct ones).

The product of its (nonzero) digits is 27216, while the sum is 38.

The square root of 2798390 is about 1672.8389043778. The cubic root of 2798390 is about 140.9189548167.

The spelling of 2798390 in words is "two million, seven hundred ninety-eight thousand, three hundred ninety".