23220330 has 32 divisors (see below), whose sum is σ = 63690624. Its totient is φ = 5307456.

The previous prime is 23220319. The next prime is 23220347. The reversal of 23220330 is 3302232.

It is a Harshad number since it is a multiple of its sum of digits (15).

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, 55077 + ... + 55496.

It is an arithmetic number, because the mean of its divisors is an integer number (1990332).

Almost surely, 2^23220330 is an apocalyptic number.

23220330 is an abundant number, since it is smaller than the sum of its proper divisors (40470294).

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

23220330 is a wasteful number, since it uses less digits than its factorization.

23220330 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 110590.

The product of its (nonzero) digits is 216, while the sum is 15.

The square root of 23220330 is about 4818.7477626454. The cubic root of 23220330 is about 285.2919138910.

Adding to 23220330 its reverse (3302232), we get a palindrome (26522562).

The spelling of 23220330 in words is "twenty-three million, two hundred twenty thousand, three hundred thirty".