23032220 has 12 divisors (see below), whose sum is σ = 48367704. Its totient is φ = 9212880.

The previous prime is 23032211. The next prime is 23032231. The reversal of 23032220 is 2223032.

It is a junction number, because it is equal to n+sod(n) for n = 23032195 and 23032204.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 575786 + ... + 575825.

It is an arithmetic number, because the mean of its divisors is an integer number (4030642).

Almost surely, 2^23032220 is an apocalyptic number.

23032220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

23032220 is an abundant number, since it is smaller than the sum of its proper divisors (25335484).

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

23032220 is a wasteful number, since it uses less digits than its factorization.

23032220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1151620 (or 1151618 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 14.

The square root of 23032220 is about 4799.1895149077. The cubic root of 23032220 is about 284.5194322466.

Adding to 23032220 its reverse (2223032), we get a palindrome (25255252).

The spelling of 23032220 in words is "twenty-three million, thirty-two thousand, two hundred twenty".