2940305 has 4 divisors (see below), whose sum is σ = 3528372. Its totient is φ = 2352240.

The previous prime is 2940277. The next prime is 2940313. The reversal of 2940305 is 5030492.

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 494209 + 2446096 = 703^2 + 1564^2 .

It is a de Polignac number, because none of the positive numbers 2^k-2940305 is a prime.

It is a Duffinian number.

It is a plaindrome in base 14.

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, 294026 + ... + 294035.

It is an arithmetic number, because the mean of its divisors is an integer number (882093).

2^2940305 is an apocalyptic number.

It is an amenable number.

2940305 is a deficient number, since it is larger than the sum of its proper divisors (588067).

2940305 is an equidigital number, since it uses as much as digits as its factorization.

2940305 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 588066.

The product of its (nonzero) digits is 1080, while the sum is 23.

The square root of 2940305 is about 1714.7317574478. The cubic root of 2940305 is about 143.2619288595.

Adding to 2940305 its reverse (5030492), we get a palindrome (7970797).

The spelling of 2940305 in words is "two million, nine hundred forty thousand, three hundred five".