202103424 has 160 divisors (see below), whose sum is σ = 610558740. Its totient is φ = 66355200.

The previous prime is 202103401. The next prime is 202103441. The reversal of 202103424 is 424301202.

It can be written as a sum of positive squares in 2 ways, for example, as 197121600 + 4981824 = 14040^2 + 2232^2 .

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

It is a junction number, because it is equal to n+sod(n) for n = 202103397 and 202103406.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 1047072 + ... + 1047264.

Almost surely, 2^202103424 is an apocalyptic number.

202103424 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 202103424, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (305279370).

202103424 is an abundant number, since it is smaller than the sum of its proper divisors (408455316).

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

202103424 is a wasteful number, since it uses less digits than its factorization.

202103424 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 320 (or 299 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 18.

The square root of 202103424 is about 14216.3083815736. The cubic root of 202103424 is about 586.8465518164.

Adding to 202103424 its reverse (424301202), we get a palindrome (626404626).

The spelling of 202103424 in words is "two hundred two million, one hundred three thousand, four hundred twenty-four".