20623332 has 24 divisors (see below), whose sum is σ = 48938400. Its totient is φ = 6757696.

The previous prime is 20623327. The next prime is 20623333. The reversal of 20623332 is 23332602.

It is a junction number, because it is equal to n+sod(n) for n = 20623299 and 20623308.

It is not an unprimeable number, because it can be changed into a prime (20623333) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13857 + ... + 15272.

It is an arithmetic number, because the mean of its divisors is an integer number (2039100).

Almost surely, 2^20623332 is an apocalyptic number.

It is an amenable number.

20623332 is an abundant number, since it is smaller than the sum of its proper divisors (28315068).

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

20623332 is a wasteful number, since it uses less digits than its factorization.

20623332 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29195 (or 29193 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 21.

The square root of 20623332 is about 4541.2918866772. The cubic root of 20623332 is about 274.2329345679.

Adding to 20623332 its reverse (23332602), we get a palindrome (43955934).

The spelling of 20623332 in words is "twenty million, six hundred twenty-three thousand, three hundred thirty-two".