223840923 has 8 divisors (see below), whose sum is σ = 298939200. Its totient is φ = 148984968.

The previous prime is 223840913. The next prime is 223840927. The reversal of 223840923 is 329048322.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 223840923 - 2⁸ = 223840667 is a prime.

It is not an unprimeable number, because it can be changed into a prime (223840927) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 58413 + ... + 62126.

It is an arithmetic number, because the mean of its divisors is an integer number (37367400).

Almost surely, 2^223840923 is an apocalyptic number.

223840923 is a deficient number, since it is larger than the sum of its proper divisors (75098277).

223840923 is a wasteful number, since it uses less digits than its factorization.

223840923 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 121161.

The product of its (nonzero) digits is 20736, while the sum is 33.

The square root of 223840923 is about 14961.3142136645. The cubic root of 223840923 is about 607.1739950127.

The spelling of 223840923 in words is "two hundred twenty-three million, eight hundred forty thousand, nine hundred twenty-three".