23220930 has 32 divisors (see below), whose sum is σ = 55862208. Its totient is φ = 6177600.

The previous prime is 23220919. The next prime is 23220937. The reversal of 23220930 is 3902232.

It is a junction number, because it is equal to n+sod(n) for n = 23220897 and 23220906.

It is not an unprimeable number, because it can be changed into a prime (23220937) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 19245 + ... + 20415.

It is an arithmetic number, because the mean of its divisors is an integer number (1745694).

Almost surely, 2^23220930 is an apocalyptic number.

23220930 is an abundant number, since it is smaller than the sum of its proper divisors (32641278).

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

23220930 is a wasteful number, since it uses less digits than its factorization.

23220930 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1842.

The product of its (nonzero) digits is 648, while the sum is 21.

The square root of 23220930 is about 4818.8100190815. The cubic root of 23220930 is about 285.2943711296.

The spelling of 23220930 in words is "twenty-three million, two hundred twenty thousand, nine hundred thirty".