23129208 has 24 divisors (see below), whose sum is σ = 62641800. Its totient is φ = 7709712.

The previous prime is 23129201. The next prime is 23129209. The reversal of 23129208 is 80292132.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (24).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23129201) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 160548 + ... + 160691.

It is an arithmetic number, because the mean of its divisors is an integer number (2610075).

Almost surely, 2^23129208 is an apocalyptic number.

It is an amenable number.

23129208 is an abundant number, since it is smaller than the sum of its proper divisors (39512592).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

23129208 is a wasteful number, since it uses less digits than its factorization.

23129208 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 321251 (or 321244 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 27.

The square root of 23129208 is about 4809.2835225218. The cubic root of 23129208 is about 284.9182406288.

The spelling of 23129208 in words is "twenty-three million, one hundred twenty-nine thousand, two hundred eight".