40798469 has 2 divisors, whose sum is σ = 40798470. Its totient is φ = 40798468.

The previous prime is 40798427. The next prime is 40798477. The reversal of 40798469 is 96489704.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 20593444 + 20205025 = 4538^2 + 4495^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-40798469 is a prime.

It is a super-2 number, since 2×40798469² = 3329030145487922, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (40798169) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20399234 + 20399235.

It is an arithmetic number, because the mean of its divisors is an integer number (20399235).

Almost surely, 2^40798469 is an apocalyptic number.

It is an amenable number.

40798469 is a deficient number, since it is larger than the sum of its proper divisors (1).

40798469 is an equidigital number, since it uses as much as digits as its factorization.

40798469 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 435456, while the sum is 47.

The square root of 40798469 is about 6387.3679242705. The cubic root of 40798469 is about 344.2558180273.

The spelling of 40798469 in words is "forty million, seven hundred ninety-eight thousand, four hundred sixty-nine".