23028444 has 18 divisors (see below), whose sum is σ = 58210880. Its totient is φ = 7676136.

The previous prime is 23028427. The next prime is 23028457. The reversal of 23028444 is 44482032.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (18).

It is a super-2 number, since 2×23028444² = 1060618466122272, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 319804 + ... + 319875.

Almost surely, 2^23028444 is an apocalyptic number.

It is an amenable number.

23028444 is an abundant number, since it is smaller than the sum of its proper divisors (35182436).

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

23028444 is a wasteful number, since it uses less digits than its factorization.

23028444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 639689 (or 639684 counting only the distinct ones).

The product of its (nonzero) digits is 6144, while the sum is 27.

The square root of 23028444 is about 4798.7960990232. The cubic root of 23028444 is about 284.5038829554.

The spelling of 23028444 in words is "twenty-three million, twenty-eight thousand, four hundred forty-four".