23090304 has 64 divisors (see below), whose sum is σ = 61885440. Its totient is φ = 7627776.

The previous prime is 23090297. The next prime is 23090329. The reversal of 23090304 is 40309032.

It is a tau number, because it is divible by the number of its divisors (64).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 60097 + ... + 60479.

It is an arithmetic number, because the mean of its divisors is an integer number (966960).

Almost surely, 2^23090304 is an apocalyptic number.

23090304 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 23090304, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (30942720).

23090304 is an abundant number, since it is smaller than the sum of its proper divisors (38795136).

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

23090304 is a wasteful number, since it uses less digits than its factorization.

23090304 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 557 (or 545 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 21.

The square root of 23090304 is about 4805.2371429514. The cubic root of 23090304 is about 284.7584040585.

Adding to 23090304 its reverse (40309032), we get a palindrome (63399336).

The spelling of 23090304 in words is "twenty-three million, ninety thousand, three hundred four".