33124240 has 20 divisors (see below), whose sum is σ = 77014044. Its totient is φ = 13249664.

The previous prime is 33124229. The next prime is 33124243. The reversal of 33124240 is 4242133.

It can be written as a sum of positive squares in 2 ways, for example, as 8363664 + 24760576 = 2892^2 + 4976^2 .

It is a tau number, because it is divible by the number of its divisors (20).

It is not an unprimeable number, because it can be changed into a prime (33124243) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 206947 + ... + 207106.

Almost surely, 2^33124240 is an apocalyptic number.

It is an amenable number.

33124240 is an abundant number, since it is smaller than the sum of its proper divisors (43889804).

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

33124240 is a wasteful number, since it uses less digits than its factorization.

33124240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 414066 (or 414060 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 19.

The square root of 33124240 is about 5755.3661916511. The cubic root of 33124240 is about 321.1554582582.

Adding to 33124240 its reverse (4242133), we get a palindrome (37366373).

The spelling of 33124240 in words is "thirty-three million, one hundred twenty-four thousand, two hundred forty".