23023404 has 72 divisors (see below), whose sum is σ = 60540480. Its totient is φ = 7372512.

The previous prime is 23023379. The next prime is 23023417. The reversal of 23023404 is 40432032.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 165567 + ... + 165705.

It is an arithmetic number, because the mean of its divisors is an integer number (840840).

Almost surely, 2^23023404 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 23023404, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (30270240).

23023404 is an abundant number, since it is smaller than the sum of its proper divisors (37517076).

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

23023404 is a wasteful number, since it uses less digits than its factorization.

23023404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 299 (or 294 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 18.

The square root of 23023404 is about 4798.2709385778. The cubic root of 23023404 is about 284.4831259560.

Adding to 23023404 its reverse (40432032), we get a palindrome (63455436).

The spelling of 23023404 in words is "twenty-three million, twenty-three thousand, four hundred four".