42734109 has 8 divisors (see below), whose sum is σ = 62158752. Its totient is φ = 25899440.

The previous prime is 42734101. The next prime is 42734129. The reversal of 42734109 is 90143724.

It is a happy number.

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 42734109 - 2³ = 42734101 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42734101) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 647454 + ... + 647519.

It is an arithmetic number, because the mean of its divisors is an integer number (7769844).

Almost surely, 2^42734109 is an apocalyptic number.

It is an amenable number.

42734109 is a deficient number, since it is larger than the sum of its proper divisors (19424643).

42734109 is a wasteful number, since it uses less digits than its factorization.

42734109 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1294987.

The product of its (nonzero) digits is 6048, while the sum is 30.

The square root of 42734109 is about 6537.1330872180. The cubic root of 42734109 is about 349.6162024243.

The spelling of 42734109 in words is "forty-two million, seven hundred thirty-four thousand, one hundred nine".