74240357 has 2 divisors, whose sum is σ = 74240358. Its totient is φ = 74240356.

The previous prime is 74240347. The next prime is 74240371. The reversal of 74240357 is 75304247.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 38551681 + 35688676 = 6209^2 + 5974^2 .

It is a cyclic number.

It is not a de Polignac number, because 74240357 - 2¹⁴ = 74223973 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (74240347) 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, 37120178 + 37120179.

It is an arithmetic number, because the mean of its divisors is an integer number (37120179).

Almost surely, 2^74240357 is an apocalyptic number.

It is an amenable number.

74240357 is a deficient number, since it is larger than the sum of its proper divisors (1).

74240357 is an equidigital number, since it uses as much as digits as its factorization.

74240357 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 23520, while the sum is 32.

The square root of 74240357 is about 8616.2844080265. The cubic root of 74240357 is about 420.2877034804.

The spelling of 74240357 in words is "seventy-four million, two hundred forty thousand, three hundred fifty-seven".