10942209 has 10 divisors (see below), whose sum is σ = 16345890. Its totient is φ = 7294752.

The previous prime is 10942207. The next prime is 10942213. The reversal of 10942209 is 90224901.

10942209 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 10909809 + 32400 = 3303^2 + 180^2 .

It is not a de Polignac number, because 10942209 - 2¹ = 10942207 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (10942201) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 67464 + ... + 67625.

It is an arithmetic number, because the mean of its divisors is an integer number (1634589).

Almost surely, 2^10942209 is an apocalyptic number.

It is an amenable number.

10942209 is a deficient number, since it is larger than the sum of its proper divisors (5403681).

10942209 is an equidigital number, since it uses as much as digits as its factorization.

10942209 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 135101 (or 135092 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 27.

The square root of 10942209 is about 3307.9009961001. The cubic root of 10942209 is about 222.0078521693.

The spelling of 10942209 in words is "ten million, nine hundred forty-two thousand, two hundred nine".