23220032 has 28 divisors (see below), whose sum is σ = 50267616. Its totient is φ = 10554240.

The previous prime is 23220019. The next prime is 23220037. The reversal of 23220032 is 23002232.

It is a junction number, because it is equal to n+sod(n) for n = 23219989 and 23220016.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23220037) 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, 15788 + ... + 17195.

It is an arithmetic number, because the mean of its divisors is an integer number (1795272).

Almost surely, 2^23220032 is an apocalyptic number.

23220032 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

23220032 is an abundant number, since it is smaller than the sum of its proper divisors (27047584).

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

23220032 is a wasteful number, since it uses less digits than its factorization.

23220032 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33006 (or 32996 counting only the distinct ones).

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

The square root of 23220032 is about 4818.7168416499. The cubic root of 23220032 is about 285.2906934468.

Adding to 23220032 its reverse (23002232), we get a palindrome (46222264).

It can be divided in two parts, 232200 and 32, that added together give a palindrome (232232).

The spelling of 23220032 in words is "twenty-three million, two hundred twenty thousand, thirty-two".