40797019 has 2 divisors, whose sum is σ = 40797020. Its totient is φ = 40797018.

The previous prime is 40797013. The next prime is 40797041. The reversal of 40797019 is 91079704.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 40797019 - 2⁹ = 40796507 is a prime.

It is a super-2 number, since 2×40797019² = 3328793518572722, which contains 22 as substring.

It is equal to p_2479249 and since 40797019 and 2479249 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (40797013) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20398509 + 20398510.

It is an arithmetic number, because the mean of its divisors is an integer number (20398510).

Almost surely, 2^40797019 is an apocalyptic number.

40797019 is a deficient number, since it is larger than the sum of its proper divisors (1).

40797019 is an equidigital number, since it uses as much as digits as its factorization.

40797019 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 15876, while the sum is 37.

The square root of 40797019 is about 6387.2544179796. The cubic root of 40797019 is about 344.2517396320.

The spelling of 40797019 in words is "forty million, seven hundred ninety-seven thousand, nineteen".