2940631 has 2 divisors, whose sum is σ = 2940632. Its totient is φ = 2940630.

The previous prime is 2940601. The next prime is 2940667. The reversal of 2940631 is 1360492.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2940631 - 2¹³ = 2932439 is a prime.

It is a super-2 number, since 2×2940631² = 17294621356322, which contains 22 as substring.

2940631 is a lucky number.

It is a junction number, because it is equal to n+sod(n) for n = 2940596 and 2940605.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2940601) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1470315 + 1470316.

It is an arithmetic number, because the mean of its divisors is an integer number (1470316).

2^2940631 is an apocalyptic number.

2940631 is a deficient number, since it is larger than the sum of its proper divisors (1).

2940631 is an equidigital number, since it uses as much as digits as its factorization.

2940631 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1296, while the sum is 25.

The square root of 2940631 is about 1714.8268134129. The cubic root of 2940631 is about 143.2672232834.

The spelling of 2940631 in words is "two million, nine hundred forty thousand, six hundred thirty-one".