4004029 has 4 divisors (see below), whose sum is σ = 4112284. Its totient is φ = 3895776.

The previous prime is 4004023. The next prime is 4004057. The reversal of 4004029 is 9204004.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 2181529 + 1822500 = 1477^2 + 1350^2 .

It is a cyclic number.

It is not a de Polignac number, because 4004029 - 2¹³ = 3995837 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 4003997 and 4004015.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4004023) 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, 54072 + ... + 54145.

It is an arithmetic number, because the mean of its divisors is an integer number (1028071).

Almost surely, 2^4004029 is an apocalyptic number.

It is an amenable number.

4004029 is a deficient number, since it is larger than the sum of its proper divisors (108255).

4004029 is a wasteful number, since it uses less digits than its factorization.

4004029 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 108254.

The product of its (nonzero) digits is 288, while the sum is 19.

The square root of 4004029 is about 2001.0069964895. The cubic root of 4004029 is about 158.7933843027.

The spelling of 4004029 in words is "four million, four thousand, twenty-nine".