23223040 has 36 divisors (see below), whose sum is σ = 55629504. Its totient is φ = 9288704.

The previous prime is 23223017. The next prime is 23223041. The reversal of 23223040 is 4032232.

It is a Harshad number since it is a multiple of its sum of digits (16).

It is not an unprimeable number, because it can be changed into a prime (23223041) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7792 + ... + 10351.

It is an arithmetic number, because the mean of its divisors is an integer number (1545264).

Almost surely, 2^23223040 is an apocalyptic number.

23223040 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

23223040 is an abundant number, since it is smaller than the sum of its proper divisors (32406464).

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

23223040 is an equidigital number, since it uses as much as digits as its factorization.

23223040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18164 (or 18150 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 16.

The square root of 23223040 is about 4819.0289478276. The cubic root of 23223040 is about 285.3030120826.

Adding to 23223040 its reverse (4032232), we get a palindrome (27255272).

The spelling of 23223040 in words is "twenty-three million, two hundred twenty-three thousand, forty".