4030749 has 8 divisors (see below), whose sum is σ = 5971520. Its totient is φ = 2687148.

The previous prime is 4030709. The next prime is 4030757. The reversal of 4030749 is 9470304.

4030749 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 4030749 - 2¹² = 4026653 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27), and also a Moran number because the ratio is a prime number: 149287 = 4030749 / (4 + 0 + 3 + 0 + 7 + 4 + 9).

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4030709) 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, 74617 + ... + 74670.

It is an arithmetic number, because the mean of its divisors is an integer number (746440).

Almost surely, 2^4030749 is an apocalyptic number.

It is an amenable number.

4030749 is a deficient number, since it is larger than the sum of its proper divisors (1940771).

4030749 is a wasteful number, since it uses less digits than its factorization.

4030749 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 149296 (or 149290 counting only the distinct ones).

The product of its (nonzero) digits is 3024, while the sum is 27.

The square root of 4030749 is about 2007.6725330591. The cubic root of 4030749 is about 159.1458256324.

The spelling of 4030749 in words is "four million, thirty thousand, seven hundred forty-nine".