2790240 has 48 divisors (see below), whose sum is σ = 8790768. Its totient is φ = 743936.

The previous prime is 2790233. The next prime is 2790251. The reversal of 2790240 is 420972.

2790240 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (48).

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a self number, because there is not a number n which added to its sum of digits gives 2790240.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2427 + ... + 3386.

It is an arithmetic number, because the mean of its divisors is an integer number (183141).

2^2790240 is an apocalyptic number.

2790240 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2790240 is an abundant number, since it is smaller than the sum of its proper divisors (6000528).

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

2790240 is a wasteful number, since it uses less digits than its factorization.

2790240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5831 (or 5823 counting only the distinct ones).

The product of its (nonzero) digits is 1008, while the sum is 24.

The square root of 2790240 is about 1670.4011494249. The cubic root of 2790240 is about 140.7820181926.

The spelling of 2790240 in words is "two million, seven hundred ninety thousand, two hundred forty".