22723230 has 32 divisors (see below), whose sum is σ = 55044000. Its totient is φ = 6003072.

The previous prime is 22723199. The next prime is 22723277. The reversal of 22723230 is 3232722.

It is a junction number, because it is equal to n+sod(n) for n = 22723197 and 22723206.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 205 + ... + 6744.

It is an arithmetic number, because the mean of its divisors is an integer number (1720125).

Almost surely, 2^22723230 is an apocalyptic number.

22723230 is an abundant number, since it is smaller than the sum of its proper divisors (32320770).

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

22723230 is a wasteful number, since it uses less digits than its factorization.

22723230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7068.

The product of its (nonzero) digits is 1008, while the sum is 21.

The square root of 22723230 is about 4766.8889225574. Note that the first 3 decimals coincide. The cubic root of 22723230 is about 283.2413711545.

Adding to 22723230 its reverse (3232722), we get a palindrome (25955952).

The spelling of 22723230 in words is "twenty-two million, seven hundred twenty-three thousand, two hundred thirty".