2738305 has 4 divisors (see below), whose sum is σ = 3285972. Its totient is φ = 2190640.

The previous prime is 2738291. The next prime is 2738317. The reversal of 2738305 is 5038372.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 641601 + 2096704 = 801^2 + 1448^2 .

It is not a de Polignac number, because 2738305 - 2⁵ = 2738273 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 273826 + ... + 273835.

It is an arithmetic number, because the mean of its divisors is an integer number (821493).

2^2738305 is an apocalyptic number.

It is an amenable number.

2738305 is a deficient number, since it is larger than the sum of its proper divisors (547667).

2738305 is an equidigital number, since it uses as much as digits as its factorization.

2738305 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 547666.

The product of its (nonzero) digits is 5040, while the sum is 28.

The square root of 2738305 is about 1654.7824630446. The cubic root of 2738305 is about 139.9030791765.

The spelling of 2738305 in words is "two million, seven hundred thirty-eight thousand, three hundred five".