23349209 has 12 divisors (see below), whose sum is σ = 26387136. Its totient is φ = 20612592.

The previous prime is 23349167. The next prime is 23349241. The reversal of 23349209 is 90294332.

It is not a de Polignac number, because 23349209 - 2⁸ = 23348953 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (23349289) 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 11 ways as a sum of consecutive naturals, for example, 884 + ... + 6890.

It is an arithmetic number, because the mean of its divisors is an integer number (2198928).

Almost surely, 2^23349209 is an apocalyptic number.

It is an amenable number.

23349209 is a deficient number, since it is larger than the sum of its proper divisors (3037927).

23349209 is a wasteful number, since it uses less digits than its factorization.

23349209 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6056 (or 6043 counting only the distinct ones).

The product of its (nonzero) digits is 11664, while the sum is 32.

The square root of 23349209 is about 4832.1019235939. The cubic root of 23349209 is about 285.8187556893.

The spelling of 23349209 in words is "twenty-three million, three hundred forty-nine thousand, two hundred nine".