23221930 has 8 divisors (see below), whose sum is σ = 41799492. Its totient is φ = 9288768.

The previous prime is 23221909. The next prime is 23221931. The reversal of 23221930 is 3912232.

It can be written as a sum of positive squares in 2 ways, for example, as 18740241 + 4481689 = 4329^2 + 2117^2 .

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

It is not an unprimeable number, because it can be changed into a prime (23221931) 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, 1161087 + ... + 1161106.

Almost surely, 2^23221930 is an apocalyptic number.

23221930 is a deficient number, since it is larger than the sum of its proper divisors (18577562).

23221930 is a wasteful number, since it uses less digits than its factorization.

23221930 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2322200.

The product of its (nonzero) digits is 648, while the sum is 22.

The square root of 23221930 is about 4818.9137780209. The cubic root of 23221930 is about 285.2984664332.

The spelling of 23221930 in words is "twenty-three million, two hundred twenty-one thousand, nine hundred thirty".