2029009 has 4 divisors (see below), whose sum is σ = 2039716. Its totient is φ = 2018304.

The previous prime is 2029007. The next prime is 2029019. The reversal of 2029009 is 9009202.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 9009202 = 2 ⋅4504601.

It can be written as a sum of positive squares in 2 ways, for example, as 138384 + 1890625 = 372^2 + 1375^2 .

It is a cyclic number.

It is not a de Polignac number, because 2029009 - 2¹ = 2029007 is a prime.

It is a Duffinian number.

2029009 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (2029003) 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, 5064 + ... + 5449.

It is an arithmetic number, because the mean of its divisors is an integer number (509929).

2^2029009 is an apocalyptic number.

It is an amenable number.

2029009 is a deficient number, since it is larger than the sum of its proper divisors (10707).

2029009 is a wasteful number, since it uses less digits than its factorization.

2029009 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10706.

The product of its (nonzero) digits is 324, while the sum is 22.

The square root of 2029009 is about 1424.4328696011. The cubic root of 2029009 is about 126.5983341808.

The spelling of 2029009 in words is "two million, twenty-nine thousand, nine".