22020352 has 18 divisors (see below), whose sum is σ = 43955198. Its totient is φ = 11010048.

The previous prime is 22020337. The next prime is 22020353. The reversal of 22020352 is 25302022.

It can be written as a sum of positive squares in only one way, i.e., 20214016 + 1806336 = 4496^2 + 1344^2 .

It is a Harshad number since it is a multiple of its sum of digits (16).

It is not an unprimeable number, because it can be changed into a prime (22020353) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42753 + ... + 43264.

Almost surely, 2^22020352 is an apocalyptic number.

It is an amenable number.

22020352 is a deficient number, since it is larger than the sum of its proper divisors (21934846).

22020352 is an frugal number, since it uses more digits than its factorization.

22020352 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 86033 (or 86019 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 16.

The square root of 22020352 is about 4692.5847887918. The cubic root of 22020352 is about 280.2903111389.

Adding to 22020352 its reverse (25302022), we get a palindrome (47322374).

The spelling of 22020352 in words is "twenty-two million, twenty thousand, three hundred fifty-two".