20233572 has 24 divisors (see below), whose sum is σ = 47371296. Its totient is φ = 6721728.

The previous prime is 20233571. The next prime is 20233573. The reversal of 20233572 is 27533202.

It is an interprime number because it is at equal distance from previous prime (20233571) and next prime (20233573).

It is not an unprimeable number, because it can be changed into a prime (20233571) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1063 + ... + 6449.

It is an arithmetic number, because the mean of its divisors is an integer number (1973804).

Almost surely, 2^20233572 is an apocalyptic number.

It is an amenable number.

20233572 is an abundant number, since it is smaller than the sum of its proper divisors (27137724).

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

20233572 is a wasteful number, since it uses less digits than its factorization.

20233572 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5707 (or 5705 counting only the distinct ones).

The product of its (nonzero) digits is 2520, while the sum is 24.

The square root of 20233572 is about 4498.1742963118. The cubic root of 20233572 is about 272.4943611885.

Adding to 20233572 its reverse (27533202), we get a palindrome (47766774).

The spelling of 20233572 in words is "twenty million, two hundred thirty-three thousand, five hundred seventy-two".