40830919 has 2 divisors, whose sum is σ = 40830920. Its totient is φ = 40830918.

The previous prime is 40830883. The next prime is 40830947. The reversal of 40830919 is 91903804.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 40830919 - 2⁹ = 40830407 is a prime.

It is a super-2 number, since 2×40830919² = 3334327892769122, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (40830949) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20415459 + 20415460.

It is an arithmetic number, because the mean of its divisors is an integer number (20415460).

Almost surely, 2^40830919 is an apocalyptic number.

40830919 is a deficient number, since it is larger than the sum of its proper divisors (1).

40830919 is an equidigital number, since it uses as much as digits as its factorization.

40830919 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 7776, while the sum is 34.

The square root of 40830919 is about 6389.9075893161. The cubic root of 40830919 is about 344.3470644322.

The spelling of 40830919 in words is "forty million, eight hundred thirty thousand, nine hundred nineteen".