33041040 has 80 divisors (see below), whose sum is σ = 105755136. Its totient is φ = 8524800.

The previous prime is 33041023. The next prime is 33041051. The reversal of 33041040 is 4014033.

It is a tau number, because it is divible by the number of its divisors (80).

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5220 + ... + 9660.

Almost surely, 2^33041040 is an apocalyptic number.

33041040 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 33041040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (52877568).

33041040 is an abundant number, since it is smaller than the sum of its proper divisors (72714096).

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

33041040 is a wasteful number, since it uses less digits than its factorization.

33041040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4488 (or 4482 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 15.

The square root of 33041040 is about 5748.1336101382. The cubic root of 33041040 is about 320.8863447945.

Adding to 33041040 its reverse (4014033), we get a palindrome (37055073).

The spelling of 33041040 in words is "thirty-three million, forty-one thousand, forty".