33103242 has 40 divisors (see below), whose sum is σ = 74579076. Its totient is φ = 10974528.

The previous prime is 33103223. The next prime is 33103243. The reversal of 33103242 is 24230133.

It can be written as a sum of positive squares in 2 ways, for example, as 33074001 + 29241 = 5751^2 + 171^2 .

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 (33103243) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 37308 + ... + 38184.

Almost surely, 2^33103242 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 33103242, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (37289538).

33103242 is an abundant number, since it is smaller than the sum of its proper divisors (41475834).

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

33103242 is a wasteful number, since it uses less digits than its factorization.

33103242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1124 (or 1115 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 18.

The square root of 33103242 is about 5753.5416918625. The cubic root of 33103242 is about 321.0875820063.

Adding to 33103242 its reverse (24230133), we get a palindrome (57333375).

The spelling of 33103242 in words is "thirty-three million, one hundred three thousand, two hundred forty-two".