4049731 has 4 divisors (see below), whose sum is σ = 4628272. Its totient is φ = 3471192.

The previous prime is 4049711. The next prime is 4049737. The reversal of 4049731 is 1379404.

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 4049731 - 2¹³ = 4041539 is a prime.

It is a super-2 number, since 2×4049731² = 32800642344722, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 4049731.

It is not an unprimeable number, because it can be changed into a prime (4049737) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 289260 + ... + 289273.

It is an arithmetic number, because the mean of its divisors is an integer number (1157068).

Almost surely, 2^4049731 is an apocalyptic number.

4049731 is a deficient number, since it is larger than the sum of its proper divisors (578541).

4049731 is an equidigital number, since it uses as much as digits as its factorization.

4049731 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 578540.

The product of its (nonzero) digits is 3024, while the sum is 28.

The square root of 4049731 is about 2012.3943450527. The cubic root of 4049731 is about 159.3952562233.

The spelling of 4049731 in words is "four million, forty-nine thousand, seven hundred thirty-one".