33350240 has 96 divisors (see below), whose sum is σ = 98267904. Its totient is φ = 10391040.

The previous prime is 33350237. The next prime is 33350257. The reversal of 33350240 is 4205333.

It is a super-2 number, since 2×33350240² = 2224477016115200, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 10967 + ... + 13673.

It is an arithmetic number, because the mean of its divisors is an integer number (1023624).

Almost surely, 2^33350240 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 33350240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (49133952).

33350240 is an abundant number, since it is smaller than the sum of its proper divisors (64917664).

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

33350240 is a wasteful number, since it uses less digits than its factorization.

33350240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2740 (or 2732 counting only the distinct ones).

The product of its (nonzero) digits is 1080, while the sum is 20.

The square root of 33350240 is about 5774.9666665705. The cubic root of 33350240 is about 321.8841963628.

Adding to 33350240 its reverse (4205333), we get a palindrome (37555573).

The spelling of 33350240 in words is "thirty-three million, three hundred fifty thousand, two hundred forty".