2775730 has 16 divisors (see below), whose sum is σ = 5025240. Its totient is φ = 1103872.

The previous prime is 2775719. The next prime is 2775733. The reversal of 2775730 is 375772.

2775730 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 2187441 + 588289 = 1479^2 + 767^2 .

It is a junction number, because it is equal to n+sod(n) for n = 2775692 and 2775701.

It is not an unprimeable number, because it can be changed into a prime (2775733) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 1266 + ... + 2674.

2^2775730 is an apocalyptic number.

2775730 is a deficient number, since it is larger than the sum of its proper divisors (2249510).

2775730 is a wasteful number, since it uses less digits than its factorization.

2775730 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1613.

The product of its (nonzero) digits is 10290, while the sum is 31.

The square root of 2775730 is about 1666.0522200699. The cubic root of 2775730 is about 140.5375591383.

It can be divided in two parts, 27 and 75730, that added together give a palindrome (75757).

The spelling of 2775730 in words is "two million, seven hundred seventy-five thousand, seven hundred thirty".