2791320 has 64 divisors (see below), whose sum is σ = 9573120. Its totient is φ = 637824.

The previous prime is 2791297. The next prime is 2791331. The reversal of 2791320 is 231972.

2791320 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 (24).

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, 822 + ... + 2501.

It is an arithmetic number, because the mean of its divisors is an integer number (149580).

2^2791320 is an apocalyptic number.

2791320 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2791320 is an abundant number, since it is smaller than the sum of its proper divisors (6781800).

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

2791320 is a wasteful number, since it uses less digits than its factorization.

2791320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3344 (or 3340 counting only the distinct ones).

The product of its (nonzero) digits is 756, while the sum is 24.

The square root of 2791320 is about 1670.7243937885. The cubic root of 2791320 is about 140.8001797088.

The spelling of 2791320 in words is "two million, seven hundred ninety-one thousand, three hundred twenty".