33041240 has 32 divisors (see below), whose sum is σ = 74526480. Its totient is φ = 13183872.

The previous prime is 33041233. The next prime is 33041263. The reversal of 33041240 is 4214033.

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 7 ways as a sum of consecutive naturals, for example, 21539 + ... + 23021.

Almost surely, 2^33041240 is an apocalyptic number.

It is an amenable number.

33041240 is an abundant number, since it is smaller than the sum of its proper divisors (41485240).

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

33041240 is a wasteful number, since it uses less digits than its factorization.

33041240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2051 (or 2047 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 17.

The square root of 33041240 is about 5748.1510070631. The cubic root of 33041240 is about 320.8869922432.

Adding to 33041240 its reverse (4214033), we get a palindrome (37255273).

The spelling of 33041240 in words is "thirty-three million, forty-one thousand, two hundred forty".