203322042 has 128 divisors (see below), whose sum is σ = 569825280. Its totient is φ = 52202880.

The previous prime is 203322011. The next prime is 203322043. The reversal of 203322042 is 240223302.

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

It is not an unprimeable number, because it can be changed into a prime (203322043) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 444678 + ... + 445134.

It is an arithmetic number, because the mean of its divisors is an integer number (4451760).

Almost surely, 2^203322042 is an apocalyptic number.

203322042 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 203322042, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (284912640).

203322042 is an abundant number, since it is smaller than the sum of its proper divisors (366503238).

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

203322042 is a wasteful number, since it uses less digits than its factorization.

203322042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 593 (or 587 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 18.

The square root of 203322042 is about 14259.1038287825. The cubic root of 203322042 is about 588.0236870924.

Adding to 203322042 its reverse (240223302), we get a palindrome (443545344).

The spelling of 203322042 in words is "two hundred three million, three hundred twenty-two thousand, forty-two".