20233424 has 20 divisors (see below), whose sum is σ = 39609444. Its totient is φ = 10011648.

The previous prime is 20233363. The next prime is 20233427. The reversal of 20233424 is 42433202.

It can be written as a sum of positive squares in 2 ways, for example, as 11424400 + 8809024 = 3380^2 + 2968^2 .

It is a junction number, because it is equal to n+sod(n) for n = 20233396 and 20233405.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20233427) 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, 4967 + ... + 8070.

Almost surely, 2^20233424 is an apocalyptic number.

It is an amenable number.

20233424 is a deficient number, since it is larger than the sum of its proper divisors (19376020).

20233424 is a wasteful number, since it uses less digits than its factorization.

20233424 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13142 (or 13136 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 20.

The square root of 20233424 is about 4498.1578451628. The cubic root of 20233424 is about 272.4936967933.

Adding to 20233424 its reverse (42433202), we get a palindrome (62666626).

The spelling of 20233424 in words is "twenty million, two hundred thirty-three thousand, four hundred twenty-four".