20223392 has 48 divisors (see below), whose sum is σ = 45904320. Its totient is φ = 8590848.

The previous prime is 20223389. The next prime is 20223403. The reversal of 20223392 is 29332202.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 30359 + ... + 31017.

It is an arithmetic number, because the mean of its divisors is an integer number (956340).

Almost surely, 2^20223392 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20223392, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (22952160).

20223392 is an abundant number, since it is smaller than the sum of its proper divisors (25680928).

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

20223392 is a wasteful number, since it uses less digits than its factorization.

20223392 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 813 (or 805 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 23.

The square root of 20223392 is about 4497.0425837432. The cubic root of 20223392 is about 272.4486540184.

Adding to 20223392 its reverse (29332202), we get a palindrome (49555594).

The spelling of 20223392 in words is "twenty million, two hundred twenty-three thousand, three hundred ninety-two".