2765320 has 32 divisors (see below), whose sum is σ = 6269400. Its totient is φ = 1097728.

The previous prime is 2765309. The next prime is 2765333. The reversal of 2765320 is 235672.

It can be written as a sum of positive squares in 4 ways, for example, as 2353156 + 412164 = 1534^2 + 642^2 .

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10146 + ... + 10414.

2^2765320 is an apocalyptic number.

2765320 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2765320 is an abundant number, since it is smaller than the sum of its proper divisors (3504080).

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

2765320 is a wasteful number, since it uses less digits than its factorization.

2765320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 537 (or 533 counting only the distinct ones).

The product of its (nonzero) digits is 2520, while the sum is 25.

The square root of 2765320 is about 1662.9251336125. The cubic root of 2765320 is about 140.3616500101.

The spelling of 2765320 in words is "two million, seven hundred sixty-five thousand, three hundred twenty".