74140369 has 2 divisors, whose sum is σ = 74140370. Its totient is φ = 74140368.

The previous prime is 74140357. The next prime is 74140373. The reversal of 74140369 is 96304147.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 43758225 + 30382144 = 6615^2 + 5512^2 .

It is a cyclic number.

It is not a de Polignac number, because 74140369 - 2¹⁷ = 74009297 is a prime.

It is a super-2 number, since 2×74140369² = 10993588630912322, which contains 22 as substring.

It is equal to p_4346935 and since 74140369 and 4346935 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 (74140309) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 37070184 + 37070185.

It is an arithmetic number, because the mean of its divisors is an integer number (37070185).

Almost surely, 2^74140369 is an apocalyptic number.

It is an amenable number.

74140369 is a deficient number, since it is larger than the sum of its proper divisors (1).

74140369 is an equidigital number, since it uses as much as digits as its factorization.

74140369 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 18144, while the sum is 34.

The square root of 74140369 is about 8610.4801840548. The cubic root of 74140369 is about 420.0989354986.

The spelling of 74140369 in words is "seventy-four million, one hundred forty thousand, three hundred sixty-nine".