34742309 has 8 divisors (see below), whose sum is σ = 39950400. Its totient is φ = 29595456.

The previous prime is 34742291. The next prime is 34742311. The reversal of 34742309 is 90324743.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 34742309 - 2¹⁶ = 34676773 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (34742369) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14084 + ... + 16365.

It is an arithmetic number, because the mean of its divisors is an integer number (4993800).

Almost surely, 2^34742309 is an apocalyptic number.

It is an amenable number.

34742309 is a deficient number, since it is larger than the sum of its proper divisors (5208091).

34742309 is a wasteful number, since it uses less digits than its factorization.

34742309 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30619.

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

The square root of 34742309 is about 5894.2606830713. The cubic root of 34742309 is about 326.3018676313.

The spelling of 34742309 in words is "thirty-four million, seven hundred forty-two thousand, three hundred nine".