2756385 has 12 divisors (see below), whose sum is σ = 4777812. Its totient is φ = 1470048.

The previous prime is 2756381. The next prime is 2756401. The reversal of 2756385 is 5836572.

2756385 is a `hidden beast` number, since 275 + 6 + 385 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 613089 + 2143296 = 783^2 + 1464^2 .

It is not a de Polignac number, because 2756385 - 2² = 2756381 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2756381) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 30582 + ... + 30671.

It is an arithmetic number, because the mean of its divisors is an integer number (398151).

2^2756385 is an apocalyptic number.

It is an amenable number.

2756385 is a deficient number, since it is larger than the sum of its proper divisors (2021427).

2756385 is a wasteful number, since it uses less digits than its factorization.

2756385 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61264 (or 61261 counting only the distinct ones).

The product of its digits is 50400, while the sum is 36.

The square root of 2756385 is about 1660.2364289462. The cubic root of 2756385 is about 140.2103131533.

The spelling of 2756385 in words is "two million, seven hundred fifty-six thousand, three hundred eighty-five".