20203242 has 32 divisors (see below), whose sum is σ = 43835904. Its totient is φ = 6182400.

The previous prime is 20203237. The next prime is 20203243. The reversal of 20203242 is 24230202.

It is not an unprimeable number, because it can be changed into a prime (20203243) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1767 + ... + 6597.

It is an arithmetic number, because the mean of its divisors is an integer number (1369872).

Almost surely, 2^20203242 is an apocalyptic number.

20203242 is an abundant number, since it is smaller than the sum of its proper divisors (23632662).

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

20203242 is a wasteful number, since it uses less digits than its factorization.

20203242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4894.

The product of its (nonzero) digits is 192, while the sum is 15.

The square root of 20203242 is about 4494.8016641449. The cubic root of 20203242 is about 272.3581373090.

Adding to 20203242 its reverse (24230202), we get a palindrome (44433444).

The spelling of 20203242 in words is "twenty million, two hundred three thousand, two hundred forty-two".