940209 has 16 divisors (see below), whose sum is σ = 1321920. Its totient is φ = 593600.

The previous prime is 940201. The next prime is 940223. The reversal of 940209 is 902049.

940209 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 940209 - 2³ = 940201 is a prime.

It is a Smith number, since the sum of its digits (24) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is an Ulam number.

It is not an unprimeable number, because it can be changed into a prime (940201) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8734 + ... + 8840.

It is an arithmetic number, because the mean of its divisors is an integer number (82620).

2⁹⁴⁰²⁰⁹ is an apocalyptic number.

It is an amenable number.

940209 is a deficient number, since it is larger than the sum of its proper divisors (381711).

940209 is a wasteful number, since it uses less digits than its factorization.

940209 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 240.

The product of its (nonzero) digits is 648, while the sum is 24.

The square root of 940209 is about 969.6437490130. The cubic root of 940209 is about 97.9658703866.

The spelling of 940209 in words is "nine hundred forty thousand, two hundred nine".