33050040 has 96 divisors (see below), whose sum is σ = 105436080. Its totient is φ = 8286208.

The previous prime is 33050033. The next prime is 33050041. The reversal of 33050040 is 4005033.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (33050041) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 34204 + ... + 35156.

Almost surely, 2^33050040 is an apocalyptic number.

33050040 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 33050040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (52718040).

33050040 is an abundant number, since it is smaller than the sum of its proper divisors (72386040).

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

33050040 is a wasteful number, since it uses less digits than its factorization.

33050040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1001 (or 980 counting only the distinct ones).

The product of its (nonzero) digits is 180, while the sum is 15.

The square root of 33050040 is about 5748.9164196394. The cubic root of 33050040 is about 320.9154774018.

Adding to 33050040 its reverse (4005033), we get a palindrome (37055073).

The spelling of 33050040 in words is "thirty-three million, fifty thousand, forty".