23652220 has 12 divisors (see below), whose sum is σ = 49669704. Its totient is φ = 9460880.

The previous prime is 23652217. The next prime is 23652221. The reversal of 23652220 is 2225632.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 23652191 and 23652200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23652221) 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, 591286 + ... + 591325.

It is an arithmetic number, because the mean of its divisors is an integer number (4139142).

Almost surely, 2^23652220 is an apocalyptic number.

23652220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

23652220 is an abundant number, since it is smaller than the sum of its proper divisors (26017484).

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

23652220 is a wasteful number, since it uses less digits than its factorization.

23652220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1182620 (or 1182618 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 22.

The square root of 23652220 is about 4863.3548091826. The cubic root of 23652220 is about 287.0498361498.

Adding to 23652220 its reverse (2225632), we get a palindrome (25877852).

The spelling of 23652220 in words is "twenty-three million, six hundred fifty-two thousand, two hundred twenty".