2009534 has 8 divisors (see below), whose sum is σ = 3020328. Its totient is φ = 1002760.

The previous prime is 2009509. The next prime is 2009537. The reversal of 2009534 is 4359002.

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

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2009537) 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, 1364 + ... + 2424.

It is an arithmetic number, because the mean of its divisors is an integer number (377541).

2^2009534 is an apocalyptic number.

2009534 is a deficient number, since it is larger than the sum of its proper divisors (1010794).

2009534 is a wasteful number, since it uses less digits than its factorization.

2009534 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2010.

The product of its (nonzero) digits is 1080, while the sum is 23.

The square root of 2009534 is about 1417.5803328207. The cubic root of 2009534 is about 126.1919891640.

The spelling of 2009534 in words is "two million, nine thousand, five hundred thirty-four".