74642341 has 2 divisors, whose sum is σ = 74642342. Its totient is φ = 74642340.

The previous prime is 74642339. The next prime is 74642387. The reversal of 74642341 is 14324647.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 44502241 + 30140100 = 6671^2 + 5490^2 .

It is an emirp because it is prime and its reverse (14324647) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 74642341 - 2¹ = 74642339 is a prime.

Together with 74642339, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (74642041) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 37321170 + 37321171.

It is an arithmetic number, because the mean of its divisors is an integer number (37321171).

Almost surely, 2^74642341 is an apocalyptic number.

It is an amenable number.

74642341 is a deficient number, since it is larger than the sum of its proper divisors (1).

74642341 is an equidigital number, since it uses as much as digits as its factorization.

74642341 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 16128, while the sum is 31.

The square root of 74642341 is about 8639.5799087687. The cubic root of 74642341 is about 421.0449058119.

Adding to 74642341 its reverse (14324647), we get a palindrome (88966988).

The spelling of 74642341 in words is "seventy-four million, six hundred forty-two thousand, three hundred forty-one".