4230781 has 8 divisors (see below), whose sum is σ = 4567680. Its totient is φ = 3906672.

The previous prime is 4230763. The next prime is 4230791. The reversal of 4230781 is 1870324.

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 4230781 - 2¹⁵ = 4198013 is a prime.

It is a super-2 number, since 2×4230781² = 35799015739922, which contains 22 as substring.

It is an Ulam number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4230731) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2505 + ... + 3838.

It is an arithmetic number, because the mean of its divisors is an integer number (570960).

Almost surely, 2^4230781 is an apocalyptic number.

It is an amenable number.

4230781 is a deficient number, since it is larger than the sum of its proper divisors (336899).

4230781 is a wasteful number, since it uses less digits than its factorization.

4230781 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6395.

The product of its (nonzero) digits is 1344, while the sum is 25.

The square root of 4230781 is about 2056.8862389544. The cubic root of 4230781 is about 161.7360559937.

The spelling of 4230781 in words is "four million, two hundred thirty thousand, seven hundred eighty-one".