2040919 has 2 divisors, whose sum is σ = 2040920. Its totient is φ = 2040918.

The previous prime is 2040917. The next prime is 2040943. The reversal of 2040919 is 9190402.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2040919 - 2¹ = 2040917 is a prime.

It is a super-2 number, since 2×2040919² = 8330700729122, which contains 22 as substring.

Together with 2040917, it forms a pair of twin primes.

It is equal to p₁₅₁₇₇₄ and since 2040919 and 151774 have the same sum of digits, it is a Honaker prime.

It is a junction number, because it is equal to n+sod(n) for n = 2040893 and 2040902.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2040917) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1020459 + 1020460.

It is an arithmetic number, because the mean of its divisors is an integer number (1020460).

2^2040919 is an apocalyptic number.

2040919 is a deficient number, since it is larger than the sum of its proper divisors (1).

2040919 is an equidigital number, since it uses as much as digits as its factorization.

2040919 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 648, while the sum is 25.

The square root of 2040919 is about 1428.6073638337. The cubic root of 2040919 is about 126.8455559490.

The spelling of 2040919 in words is "two million, forty thousand, nine hundred nineteen".