23028438 has 16 divisors (see below), whose sum is σ = 48766320. Its totient is φ = 7224576.

The previous prime is 23028427. The next prime is 23028457. The reversal of 23028438 is 83482032.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 112783 + ... + 112986.

It is an arithmetic number, because the mean of its divisors is an integer number (3047895).

Almost surely, 2^23028438 is an apocalyptic number.

23028438 is an abundant number, since it is smaller than the sum of its proper divisors (25737882).

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

23028438 is a wasteful number, since it uses less digits than its factorization.

23028438 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 225791.

The product of its (nonzero) digits is 9216, while the sum is 30.

The square root of 23028438 is about 4798.7954738663. The cubic root of 23028438 is about 284.5038582464.

The spelling of 23028438 in words is "twenty-three million, twenty-eight thousand, four hundred thirty-eight".