20053242 has 24 divisors (see below), whose sum is σ = 47399040. Its totient is φ = 6076680.

The previous prime is 20053237. The next prime is 20053259. The reversal of 20053242 is 24235002.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 50442 + ... + 50837.

It is an arithmetic number, because the mean of its divisors is an integer number (1974960).

Almost surely, 2^20053242 is an apocalyptic number.

20053242 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

20053242 is an abundant number, since it is smaller than the sum of its proper divisors (27345798).

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

20053242 is a wasteful number, since it uses less digits than its factorization.

20053242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 101298 (or 101295 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 18.

The square root of 20053242 is about 4478.0846351984. The cubic root of 20053242 is about 271.6824166077.

Adding to 20053242 its reverse (24235002), we get a palindrome (44288244).

The spelling of 20053242 in words is "twenty million, fifty-three thousand, two hundred forty-two".