23390208 has 144 divisors (see below), whose sum is σ = 71547840. Its totient is φ = 7630848.

The previous prime is 23390183. The next prime is 23390221. The reversal of 23390208 is 80209332.

It is a tau number, because it is divible by the number of its divisors (144).

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

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 497641 + ... + 497687.

It is an arithmetic number, because the mean of its divisors is an integer number (496860).

Almost surely, 2^23390208 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 23390208, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (35773920).

23390208 is an abundant number, since it is smaller than the sum of its proper divisors (48157632).

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

23390208 is an frugal number, since it uses more digits than its factorization.

23390208 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 84 (or 52 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 27.

The square root of 23390208 is about 4836.3424196390. The cubic root of 23390208 is about 285.9859480928.

The spelling of 23390208 in words is "twenty-three million, three hundred ninety thousand, two hundred eight".