4043361 has 16 divisors (see below), whose sum is σ = 6361088. Its totient is φ = 2235600.

The previous prime is 4043357. The next prime is 4043387. The reversal of 4043361 is 1633404.

Added to its reverse (1633404) it gives a triangular number (5676765 = T₃₃₆₉).

It is not a de Polignac number, because 4043361 - 2² = 4043357 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4043321) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2455 + ... + 3756.

It is an arithmetic number, because the mean of its divisors is an integer number (397568).

Almost surely, 2^4043361 is an apocalyptic number.

It is an amenable number.

4043361 is a deficient number, since it is larger than the sum of its proper divisors (2317727).

4043361 is a wasteful number, since it uses less digits than its factorization.

4043361 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6252.

The product of its (nonzero) digits is 864, while the sum is 21.

The square root of 4043361 is about 2010.8110304054. The cubic root of 4043361 is about 159.3116390966.

Adding to 4043361 its reverse (1633404), we get a palindrome (5676765).

The spelling of 4043361 in words is "four million, forty-three thousand, three hundred sixty-one".