4238731 has 4 divisors (see below), whose sum is σ = 4844272. Its totient is φ = 3633192.

The previous prime is 4238719. The next prime is 4238747. The reversal of 4238731 is 1378324.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 4238731 - 2⁵ = 4238699 is a prime.

It is a super-2 number, since 2×4238731² = 35933680980722, which contains 22 as substring.

It is a Duffinian number.

It is a nialpdrome in base 13.

It is a self number, because there is not a number n which added to its sum of digits gives 4238731.

It is not an unprimeable number, because it can be changed into a prime (4238761) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 302760 + ... + 302773.

It is an arithmetic number, because the mean of its divisors is an integer number (1211068).

Almost surely, 2^4238731 is an apocalyptic number.

4238731 is a deficient number, since it is larger than the sum of its proper divisors (605541).

4238731 is an equidigital number, since it uses as much as digits as its factorization.

4238731 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 605540.

The product of its digits is 4032, while the sum is 28.

The square root of 4238731 is about 2058.8178646981. The cubic root of 4238731 is about 161.8372979085.

The spelling of 4238731 in words is "four million, two hundred thirty-eight thousand, seven hundred thirty-one".