4081730 has 8 divisors (see below), whose sum is σ = 7347132. Its totient is φ = 1632688.

The previous prime is 4081711. The next prime is 4081733. The reversal of 4081730 is 371804.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 3964081 + 117649 = 1991^2 + 343^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 4081696 and 4081705.

It is not an unprimeable number, because it can be changed into a prime (4081733) 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, 204077 + ... + 204096.

Almost surely, 2^4081730 is an apocalyptic number.

4081730 is a deficient number, since it is larger than the sum of its proper divisors (3265402).

4081730 is a wasteful number, since it uses less digits than its factorization.

4081730 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 408180.

The product of its (nonzero) digits is 672, while the sum is 23.

The square root of 4081730 is about 2020.3291810990. The cubic root of 4081730 is about 159.8139765125.

The spelling of 4081730 in words is "four million, eighty-one thousand, seven hundred thirty".