2203542 has 48 divisors (see below), whose sum is σ = 5391360. Its totient is φ = 644400.

The previous prime is 2203541. The next prime is 2203559. The reversal of 2203542 is 2453022.

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

It is an Ulam number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2203541) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 5959 + ... + 6317.

It is an arithmetic number, because the mean of its divisors is an integer number (112320).

2^2203542 is an apocalyptic number.

2203542 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 2203542, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2695680).

2203542 is an abundant number, since it is smaller than the sum of its proper divisors (3187818).

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

2203542 is a wasteful number, since it uses less digits than its factorization.

2203542 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 409 (or 406 counting only the distinct ones).

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

The square root of 2203542 is about 1484.4332251738. The cubic root of 2203542 is about 130.1289056678.

Adding to 2203542 its product of nonzero digits (480), we get a palindrome (2204022).

Adding to 2203542 its reverse (2453022), we get a palindrome (4656564).

The spelling of 2203542 in words is "two million, two hundred three thousand, five hundred forty-two".