2940731 has 2 divisors, whose sum is σ = 2940732. Its totient is φ = 2940730.

The previous prime is 2940709. The next prime is 2940733. The reversal of 2940731 is 1370492.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2940731 - 2⁶ = 2940667 is a prime.

It is a super-2 number, since 2×2940731² = 17295797628722, which contains 22 as substring.

Together with 2940733, it forms a pair of twin primes.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2940731.

It is not a weakly prime, because it can be changed into another prime (2940733) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1470365 + 1470366.

It is an arithmetic number, because the mean of its divisors is an integer number (1470366).

2^2940731 is an apocalyptic number.

2940731 is a deficient number, since it is larger than the sum of its proper divisors (1).

2940731 is an equidigital number, since it uses as much as digits as its factorization.

2940731 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1512, while the sum is 26.

The square root of 2940731 is about 1714.8559706284. The cubic root of 2940731 is about 143.2688472613.

The spelling of 2940731 in words is "two million, nine hundred forty thousand, seven hundred thirty-one".