74405369 has 2 divisors, whose sum is σ = 74405370. Its totient is φ = 74405368.

The previous prime is 74405291. The next prime is 74405377. The reversal of 74405369 is 96350447.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 44023225 + 30382144 = 6635^2 + 5512^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-74405369 is a prime.

It is a super-2 number, since 2×74405369² = 11072317872052322, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (74405399) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 37202684 + 37202685.

It is an arithmetic number, because the mean of its divisors is an integer number (37202685).

Almost surely, 2^74405369 is an apocalyptic number.

It is an amenable number.

74405369 is a deficient number, since it is larger than the sum of its proper divisors (1).

74405369 is an equidigital number, since it uses as much as digits as its factorization.

74405369 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 90720, while the sum is 38.

The square root of 74405369 is about 8625.8546822909. The cubic root of 74405369 is about 420.5988603679.

The spelling of 74405369 in words is "seventy-four million, four hundred five thousand, three hundred sixty-nine".