2795840 has 28 divisors (see below), whose sum is σ = 6658356. Its totient is φ = 1118208.

The previous prime is 2795809. The next prime is 2795873. The reversal of 2795840 is 485972.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 1032256 + 1763584 = 1016^2 + 1328^2 .

It is a nialpdrome in base 4.

It is a zygodrome in base 4.

It is a self number, because there is not a number n which added to its sum of digits gives 2795840.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4049 + ... + 4688.

2^2795840 is an apocalyptic number.

2795840 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2795840 is an abundant number, since it is smaller than the sum of its proper divisors (3862516).

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

2795840 is an equidigital number, since it uses as much as digits as its factorization.

2795840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8754 (or 8744 counting only the distinct ones).

The product of its (nonzero) digits is 20160, while the sum is 35.

The square root of 2795840 is about 1672.0765532714. The cubic root of 2795840 is about 140.8761382282.

The spelling of 2795840 in words is "two million, seven hundred ninety-five thousand, eight hundred forty".