4242729 has 8 divisors (see below), whose sum is σ = 5852160. Its totient is φ = 2730896.

The previous prime is 4242713. The next prime is 4242751. The reversal of 4242729 is 9272424.

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 4242729 - 2⁴ = 4242713 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 4242696 and 4242705.

It is not an unprimeable number, because it can be changed into a prime (4242709) 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, 24297 + ... + 24470.

It is an arithmetic number, because the mean of its divisors is an integer number (731520).

Almost surely, 2^4242729 is an apocalyptic number.

It is an amenable number.

4242729 is a deficient number, since it is larger than the sum of its proper divisors (1609431).

4242729 is a wasteful number, since it uses less digits than its factorization.

4242729 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48799.

The product of its digits is 8064, while the sum is 30.

The square root of 4242729 is about 2059.7885813840. The cubic root of 4242729 is about 161.8881639340. Note that the first 3 decimals are identical.

The spelling of 4242729 in words is "four million, two hundred forty-two thousand, seven hundred twenty-nine".