33124740 has 96 divisors (see below), whose sum is σ = 104509440. Its totient is φ = 7766400.

The previous prime is 33124723. The next prime is 33124747. The reversal of 33124740 is 4742133.

It is a self number, because there is not a number n which added to its sum of digits gives 33124740.

It is not an unprimeable number, because it can be changed into a prime (33124747) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 19651 + ... + 21269.

It is an arithmetic number, because the mean of its divisors is an integer number (1088640).

Almost surely, 2^33124740 is an apocalyptic number.

33124740 is a gapful number since it is divisible by the number (30) 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 33124740, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (52254720).

33124740 is an abundant number, since it is smaller than the sum of its proper divisors (71384700).

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

33124740 is a wasteful number, since it uses less digits than its factorization.

33124740 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1673 (or 1671 counting only the distinct ones).

The product of its (nonzero) digits is 2016, while the sum is 24.

The square root of 33124740 is about 5755.4096292097. The cubic root of 33124740 is about 321.1570741637.

Adding to 33124740 its reverse (4742133), we get a palindrome (37866873).

The spelling of 33124740 in words is "thirty-three million, one hundred twenty-four thousand, seven hundred forty".