74342039 has 2 divisors, whose sum is σ = 74342040. Its totient is φ = 74342038.

The previous prime is 74342029. The next prime is 74342053. The reversal of 74342039 is 93024347.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 74342039 - 2⁸ = 74341783 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 74341996 and 74342014.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (74342029) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 37171019 + 37171020.

It is an arithmetic number, because the mean of its divisors is an integer number (37171020).

Almost surely, 2^74342039 is an apocalyptic number.

74342039 is a deficient number, since it is larger than the sum of its proper divisors (1).

74342039 is an equidigital number, since it uses as much as digits as its factorization.

74342039 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 18144, while the sum is 32.

The square root of 74342039 is about 8622.1829602485. The cubic root of 74342039 is about 420.4794958339.

The spelling of 74342039 in words is "seventy-four million, three hundred forty-two thousand, thirty-nine".